diff --git a/frontend/src/pages/DataAnnotation/Annotate/LabelStudioTextEditor.tsx b/frontend/src/pages/DataAnnotation/Annotate/LabelStudioTextEditor.tsx
index 3fa53a5..afaf393 100644
--- a/frontend/src/pages/DataAnnotation/Annotate/LabelStudioTextEditor.tsx
+++ b/frontend/src/pages/DataAnnotation/Annotate/LabelStudioTextEditor.tsx
@@ -824,7 +824,7 @@ export default function LabelStudioTextEditor() {
             />
           </div>
           {segmented && (
-            <div className="border-t border-gray-200 bg-white flex flex-col min-h-0">
+            <div className="flex-1 border-t border-gray-200 bg-white flex flex-col min-h-0">
               <div className="px-3 py-2 border-b border-gray-200 bg-gray-50 font-medium text-sm flex items-center justify-between">
                 <span>段落/分段</span>
                 <Tag color="blue" style={{ margin: 0 }}>
diff --git a/frontend/src/pages/DataAnnotation/Create/CreateTask.tsx b/frontend/src/pages/DataAnnotation/Create/CreateTask.tsx
index ac89d4a..fa67091 100644
--- a/frontend/src/pages/DataAnnotation/Create/CreateTask.tsx
+++ b/frontend/src/pages/DataAnnotation/Create/CreateTask.tsx
@@ -1,12 +1,13 @@
-import { useEffect, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
 import { Button, Input, Select, Form, message, Radio } from "antd";
+import type { RadioChangeEvent } from "antd";
 import TextArea from "antd/es/input/TextArea";
 import { DatabaseOutlined } from "@ant-design/icons";
 import { Link, useNavigate } from "react-router";
 import { ArrowLeft } from "lucide-react";
 import { queryDatasetsUsingGet } from "../../DataManagement/dataset.api";
 import { mapDataset } from "@/pages/DataManagement/dataset.const";
-import type { Dataset } from "@/pages/DataManagement/dataset.model";
+import { DatasetType, type Dataset } from "@/pages/DataManagement/dataset.model";
 import {
   createAnnotationTaskUsingPost,
   queryAnnotationTemplatesUsingGet,
@@ -14,20 +15,33 @@ import {
 import type { AnnotationTemplate } from "../annotation.model";
 import TemplateConfigurationTreeEditor from "../components/TemplateConfigurationTreeEditor";
 
+const DEFAULT_SEGMENTATION_ENABLED = true;
+const SEGMENTATION_OPTIONS = [
+  { label: "需要切片段", value: true },
+  { label: "不需要切片段", value: false },
+];
+
 export default function AnnotationTaskCreate() {
   const navigate = useNavigate();
   const [form] = Form.useForm();
   const [datasets, setDatasets] = useState<Dataset[]>([]);
   const [templates, setTemplates] = useState<AnnotationTemplate[]>([]);
+  const [selectedDatasetId, setSelectedDatasetId] = useState<string | null>(null);
   const [labelConfig, setLabelConfig] = useState("");
   const [configMode, setConfigMode] = useState<"template" | "custom">("template");
   const [submitting, setSubmitting] = useState(false);
 
+  const selectedDataset = useMemo(
+    () => datasets.find((dataset) => dataset.id === selectedDatasetId),
+    [datasets, selectedDatasetId]
+  );
+  const isTextDataset = selectedDataset?.datasetType === DatasetType.TEXT;
+
   const fetchDatasets = async () => {
     try {
       const { data } = await queryDatasetsUsingGet({ page: 0, pageSize: 1000 });
       const list = data?.content || [];
-      setDatasets(list.map((item: any) => mapDataset(item)) || []);
+      setDatasets(list.map((item) => mapDataset(item)) || []);
     } catch (error) {
       console.error("加载数据集失败:", error);
       message.error("加载数据集失败");
@@ -62,7 +76,7 @@ export default function AnnotationTaskCreate() {
     setLabelConfig(selectedTemplate?.labelConfig || "");
   };
 
-  const handleConfigModeChange = (e: any) => {
+  const handleConfigModeChange = (e: RadioChangeEvent) => {
     const mode = e.target.value;
     setConfigMode(mode);
     if (mode === "custom") {
@@ -79,20 +93,26 @@ export default function AnnotationTaskCreate() {
       }
 
       setSubmitting(true);
-      await createAnnotationTaskUsingPost({
+      const requestData: Record<string, unknown> = {
         name: values.name,
         description: values.description,
         datasetId: values.datasetId,
         templateId: configMode === "template" ? values.templateId : undefined,
         labelConfig: labelConfig.trim(),
-      });
+      };
+      if (isTextDataset) {
+        requestData.segmentationEnabled =
+          values.segmentationEnabled ?? DEFAULT_SEGMENTATION_ENABLED;
+      }
+      await createAnnotationTaskUsingPost(requestData);
       message.success("标注任务创建成功");
       navigate("/data/annotation");
-    } catch (error: any) {
-      if (error?.errorFields) {
+    } catch (error: unknown) {
+      const err = error as { errorFields?: unknown; message?: string; data?: { message?: string } };
+      if (err?.errorFields) {
         message.error("请完善必填信息");
       } else {
-        const msg = error?.message || error?.data?.message || "创建失败，请稍后重试";
+        const msg = err?.message || err?.data?.message || "创建失败，请稍后重试";
         message.error(msg);
         console.error(error);
       }
@@ -149,6 +169,40 @@ export default function AnnotationTaskCreate() {
                   ),
                   value: dataset.id,
                 }))}
+                onChange={(value) => {
+                  setSelectedDatasetId(value);
+                  const dataset = datasets.find((item) => item.id === value);
+                  if (dataset?.datasetType === DatasetType.TEXT) {
+                    const currentValue = form.getFieldValue("segmentationEnabled");
+                    if (currentValue === undefined) {
+                      form.setFieldsValue({
+                        segmentationEnabled: DEFAULT_SEGMENTATION_ENABLED,
+                      });
+                    }
+                  } else if (dataset) {
+                    form.setFieldsValue({ segmentationEnabled: false });
+                  }
+                }}
+              />
+            </Form.Item>
+
+            <Form.Item
+              label="段落切片"
+              name="segmentationEnabled"
+              initialValue={DEFAULT_SEGMENTATION_ENABLED}
+              extra={
+                !selectedDatasetId
+                  ? "请选择数据集后配置"
+                  : isTextDataset
+                    ? "仅文本数据集可配置该项"
+                    : "非文本数据集不支持切片段"
+              }
+            >
+              <Radio.Group
+                options={SEGMENTATION_OPTIONS}
+                optionType="button"
+                buttonStyle="solid"
+                disabled={!isTextDataset}
               />
             </Form.Item>
 
diff --git a/frontend/src/pages/DataAnnotation/Create/components/CreateAnnotationTaskDialog.tsx b/frontend/src/pages/DataAnnotation/Create/components/CreateAnnotationTaskDialog.tsx
index f45c92b..7d0efc1 100644
--- a/frontend/src/pages/DataAnnotation/Create/components/CreateAnnotationTaskDialog.tsx
+++ b/frontend/src/pages/DataAnnotation/Create/components/CreateAnnotationTaskDialog.tsx
@@ -1,8 +1,10 @@
 import { queryDatasetsUsingGet, queryDatasetFilesUsingGet } from "@/pages/DataManagement/dataset.api";
 import { mapDataset } from "@/pages/DataManagement/dataset.const";
 import { App, Button, Form, Input, Modal, Select, Radio, Table } from "antd";
+import type { RadioChangeEvent } from "antd";
 import TextArea from "antd/es/input/TextArea";
-import { useEffect, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
+import type { ReactNode } from "react";
 import { Eye } from "lucide-react";
 import {
   createAnnotationTaskUsingPost,
@@ -10,7 +12,7 @@ import {
   updateAnnotationTaskByIdUsingPut,
   queryAnnotationTemplatesUsingGet,
 } from "../../annotation.api";
-import { type Dataset } from "@/pages/DataManagement/dataset.model";
+import { DatasetType, type Dataset } from "@/pages/DataManagement/dataset.model";
 import type { AnnotationTemplate, AnnotationTask } from "../../annotation.model";
 import LabelStudioEmbed from "@/components/business/LabelStudioEmbed";
 import TemplateConfigurationTreeEditor from "../../components/TemplateConfigurationTreeEditor";
@@ -24,6 +26,38 @@ interface AnnotationTaskDialogProps {
   editTask?: AnnotationTask | null;
 }
 
+type DatasetOption = Dataset & { icon?: ReactNode };
+
+type DatasetPreviewFile = {
+  id: string;
+  fileName?: string;
+  fileSize?: number;
+};
+
+type AnnotationTaskDetail = {
+  name?: string;
+  description?: string;
+  datasetId?: string;
+  labelConfig?: string;
+  template?: { labelConfig?: string };
+  segmentationEnabled?: boolean;
+};
+
+type ApiResponse<T> = {
+  code?: number;
+  message?: string;
+  data?: T;
+};
+
+const isRecord = (value: unknown): value is Record<string, unknown> =>
+  !!value && typeof value === "object" && !Array.isArray(value);
+
+const DEFAULT_SEGMENTATION_ENABLED = true;
+const SEGMENTATION_OPTIONS = [
+  { label: "需要切片段", value: true },
+  { label: "不需要切片段", value: false },
+];
+
 export default function CreateAnnotationTask({
   open,
   onClose,
@@ -33,19 +67,19 @@ export default function CreateAnnotationTask({
   const isEditMode = !!editTask;
   const { message } = App.useApp();
   const [manualForm] = Form.useForm();
-  const [datasets, setDatasets] = useState<Dataset[]>([]);
+  const [datasets, setDatasets] = useState<DatasetOption[]>([]);
   const [templates, setTemplates] = useState<AnnotationTemplate[]>([]);
   const [submitting, setSubmitting] = useState(false);
   const [nameManuallyEdited, setNameManuallyEdited] = useState(false);
 
   const [labelConfig, setLabelConfig] = useState("");
   const [showPreview, setShowPreview] = useState(false);
-  const [previewTaskData, setPreviewTaskData] = useState<Record<string, any>>({});
+  const [previewTaskData, setPreviewTaskData] = useState<Record<string, unknown>>({});
   const [configMode, setConfigMode] = useState<"template" | "custom">("template");
 
   // 数据集预览相关状态
   const [datasetPreviewVisible, setDatasetPreviewVisible] = useState(false);
-  const [datasetPreviewData, setDatasetPreviewData] = useState<any[]>([]);
+  const [datasetPreviewData, setDatasetPreviewData] = useState<DatasetPreviewFile[]>([]);
   const [datasetPreviewLoading, setDatasetPreviewLoading] = useState(false);
   const [selectedDatasetId, setSelectedDatasetId] = useState<string | null>(null);
 
@@ -61,6 +95,12 @@ export default function CreateAnnotationTask({
   const [taskDetailLoading, setTaskDetailLoading] = useState(false);
   const { config: tagConfig } = useTagConfig(false);
 
+  const selectedDataset = useMemo(
+    () => datasets.find((dataset) => dataset.id === selectedDatasetId),
+    [datasets, selectedDatasetId]
+  );
+  const isTextDataset = selectedDataset?.datasetType === DatasetType.TEXT;
+
   useEffect(() => {
     if (!open) return;
     const fetchData = async () => {
@@ -107,7 +147,7 @@ export default function CreateAnnotationTask({
         // 编辑模式：加载任务详情
         setTaskDetailLoading(true);
         getAnnotationTaskByIdUsingGet(editTask.id)
-          .then((res: any) => {
+          .then((res: ApiResponse<AnnotationTaskDetail>) => {
             if (res.code === 200 && res.data) {
               const taskDetail = res.data;
               // 填充基本信息
@@ -115,8 +155,13 @@ export default function CreateAnnotationTask({
                 name: taskDetail.name,
                 description: taskDetail.description,
                 datasetId: taskDetail.datasetId,
+                segmentationEnabled: typeof taskDetail.segmentationEnabled === "boolean"
+                  ? taskDetail.segmentationEnabled
+                  : DEFAULT_SEGMENTATION_ENABLED,
               });
-              setSelectedDatasetId(taskDetail.datasetId);
+              if (taskDetail.datasetId) {
+                setSelectedDatasetId(taskDetail.datasetId);
+              }
 
               // 获取实际的 labelConfig（优先使用任务自身的配置，回退到模板配置）
               const configXml = taskDetail.labelConfig || taskDetail.template?.labelConfig;
@@ -140,6 +185,9 @@ export default function CreateAnnotationTask({
         // 创建模式：重置为默认状态
         setConfigMode("template");
         setSelectedDatasetId(null);
+        manualForm.setFieldsValue({
+          segmentationEnabled: DEFAULT_SEGMENTATION_ENABLED,
+        });
       }
     }
   }, [open, manualForm, isEditMode, editTask, message]);
@@ -154,7 +202,7 @@ export default function CreateAnnotationTask({
     try {
       const res = await queryDatasetFilesUsingGet(selectedDatasetId, { page: 0, size: 10 });
       if (res.code === '0' && res.data) {
-        setDatasetPreviewData(res.data.content || []);
+        setDatasetPreviewData((res.data.content || []) as DatasetPreviewFile[]);
         setDatasetPreviewVisible(true);
       } else {
         message.error("获取数据集预览失败");
@@ -168,7 +216,7 @@ export default function CreateAnnotationTask({
   };
 
   // 预览文件内容
-  const handlePreviewFileContent = async (file: any) => {
+  const handlePreviewFileContent = async (file: DatasetPreviewFile) => {
     const fileName = file.fileName?.toLowerCase() || '';
 
     // 文件类型扩展名映射
@@ -318,7 +366,7 @@ export default function CreateAnnotationTask({
   };
 
   const generatePreviewTaskDataFromLabelConfig = (xml: string) => {
-    const exampleDataByType: Record<string, any> = {
+    const exampleDataByType: Record<string, unknown> = {
       Image: "https://labelstud.io/images/opa-header.png",
       Audio: "https://labelstud.io/files/sample.wav",
       AudioPlus: "https://labelstud.io/files/sample.wav",
@@ -350,7 +398,7 @@ export default function CreateAnnotationTask({
       };
     }
 
-    const data: Record<string, any> = {};
+    const data: Record<string, unknown> = {};
     objects.forEach((obj) => {
       const name = obj.name || "";
       const value = obj.value || "";
@@ -380,14 +428,16 @@ export default function CreateAnnotationTask({
   };
 
   // 当选择模板时，加载 XML 配置到树编辑器（仅快速填充）
-  const handleTemplateSelect = (value: string, option: any) => {
+  const handleTemplateSelect = (value: string, option: unknown) => {
     if (!value) {
       setLabelConfig("");
       return;
     }
 
     const selectedTemplate = templates.find((template) => template.id === value);
-    const configXml = selectedTemplate?.labelConfig || option?.config || "";
+    const configXml = selectedTemplate?.labelConfig
+      || (isRecord(option) && typeof option.config === "string" ? option.config : "")
+      || "";
     setLabelConfig(configXml);
   };
 
@@ -437,6 +487,10 @@ export default function CreateAnnotationTask({
         templateId: configMode === "template" ? values.templateId : undefined,
         labelConfig: labelConfig.trim(),
       };
+      if (!isEditMode && isTextDataset) {
+        requestData.segmentationEnabled =
+          values.segmentationEnabled ?? DEFAULT_SEGMENTATION_ENABLED;
+      }
 
       if (isEditMode && editTask) {
         // 编辑模式：调用更新接口
@@ -449,16 +503,17 @@ export default function CreateAnnotationTask({
       }
       onClose();
       onRefresh();
-    } catch (err: any) {
+    } catch (err: unknown) {
       console.error(isEditMode ? "Update annotation task failed" : "Create annotation task failed", err);
-      const msg = err?.message || err?.data?.message || (isEditMode ? "更新失败，请稍后重试" : "创建失败，请稍后重试");
+      const error = err as { message?: string; data?: { message?: string } };
+      const msg = error?.message || error?.data?.message || (isEditMode ? "更新失败，请稍后重试" : "创建失败，请稍后重试");
       message.error(msg);
     } finally {
       setSubmitting(false);
     }
   };
 
-  const handleConfigModeChange = (e: any) => {
+  const handleConfigModeChange = (e: RadioChangeEvent) => {
     const mode = e.target.value;
     setConfigMode(mode);
     if (mode === "custom") {
@@ -521,7 +576,7 @@ export default function CreateAnnotationTask({
                     label: (
                       <div className="flex items-center justify-between gap-3 py-2">
                         <div className="flex items-center font-sm text-gray-900">
-                          <span className="mr-2">{(dataset as any).icon}</span>
+                          <span className="mr-2">{dataset.icon}</span>
                           <span>{dataset.name}</span>
                         </div>
                         <div className="text-xs text-gray-500">{dataset.size}</div>
@@ -532,6 +587,17 @@ export default function CreateAnnotationTask({
                 })}
                 onChange={(value) => {
                   setSelectedDatasetId(value);
+                  const dataset = datasets.find((item) => item.id === value);
+                  if (dataset?.datasetType === DatasetType.TEXT) {
+                    const currentValue = manualForm.getFieldValue("segmentationEnabled");
+                    if (currentValue === undefined) {
+                      manualForm.setFieldsValue({
+                        segmentationEnabled: DEFAULT_SEGMENTATION_ENABLED,
+                      });
+                    }
+                  } else if (dataset) {
+                    manualForm.setFieldsValue({ segmentationEnabled: false });
+                  }
                   // 如果用户未手动修改名称，则用数据集名称作为默认任务名
                   if (!nameManuallyEdited) {
                     const ds = datasets.find((d) => d.id === value);
@@ -578,6 +644,28 @@ export default function CreateAnnotationTask({
             <TextArea placeholder="（可选）详细描述标注任务的要求和目标" rows={2} />
           </Form.Item>
 
+          <Form.Item
+            label="段落切片"
+            name="segmentationEnabled"
+            initialValue={DEFAULT_SEGMENTATION_ENABLED}
+            extra={
+              isEditMode
+                ? "编辑模式暂不支持修改"
+                : !selectedDatasetId
+                  ? "请选择数据集后配置"
+                  : isTextDataset
+                    ? "仅文本数据集可配置该项"
+                    : "非文本数据集不支持切片段"
+            }
+          >
+            <Radio.Group
+              options={SEGMENTATION_OPTIONS}
+              optionType="button"
+              buttonStyle="solid"
+              disabled={!isTextDataset || isEditMode}
+            />
+          </Form.Item>
+
           {/* 标注模板选择 */}
           <div className="flex items-center justify-between mb-2">
               <span className="text-sm font-medium text-gray-700 after:content-['*'] after:text-red-500 after:ml-1">标注配置</span>
@@ -721,7 +809,7 @@ export default function CreateAnnotationTask({
               dataIndex: "fileName",
               key: "fileName",
               ellipsis: true,
-              render: (text: string, record: any) => (
+              render: (text: string, record: DatasetPreviewFile) => (
                 <Button
                   type="link"
                   size="small"
diff --git a/runtime/datamate-python/app/module/annotation/interface/project.py b/runtime/datamate-python/app/module/annotation/interface/project.py
index c2aae77..cbd33c9 100644
--- a/runtime/datamate-python/app/module/annotation/interface/project.py
+++ b/runtime/datamate-python/app/module/annotation/interface/project.py
@@ -25,6 +25,7 @@ router = APIRouter(
     tags=["annotation/project"]
 )
 logger = get_logger(__name__)
+TEXT_DATASET_TYPE = "TEXT"
 
 @router.get("/{mapping_id}/login")
 async def login_label_studio(
@@ -62,6 +63,12 @@ async def create_mapping(
                 detail=f"Dataset not found in DM service: {request.dataset_id}"
             )
 
+        dataset_type = (
+            getattr(dataset_info, "datasetType", None)
+            or getattr(dataset_info, "dataset_type", None)
+            or ""
+        ).upper()
+
         project_name = request.name or \
                        dataset_info.name or \
                        "A new project from DataMate"
@@ -97,6 +104,8 @@ async def create_mapping(
             project_configuration["label_config"] = label_config
         if project_description:
             project_configuration["description"] = project_description
+        if dataset_type == TEXT_DATASET_TYPE and request.segmentation_enabled is not None:
+            project_configuration["segmentation_enabled"] = bool(request.segmentation_enabled)
 
         labeling_project = LabelingProject(
                 id=str(uuid.uuid4()),  # Generate UUID here
diff --git a/runtime/datamate-python/app/module/annotation/schema/mapping.py b/runtime/datamate-python/app/module/annotation/schema/mapping.py
index 8a221f5..f094c55 100644
--- a/runtime/datamate-python/app/module/annotation/schema/mapping.py
+++ b/runtime/datamate-python/app/module/annotation/schema/mapping.py
@@ -23,6 +23,11 @@ class DatasetMappingCreateRequest(BaseModel):
     description: Optional[str] = Field(None, alias="description", description="标注项目描述")
     template_id: Optional[str] = Field(None, alias="templateId", description="标注模板ID")
     label_config: Optional[str] = Field(None, alias="labelConfig", description="Label Studio XML配置")
+    segmentation_enabled: Optional[bool] = Field(
+        None,
+        alias="segmentationEnabled",
+        description="是否启用文本分段",
+    )
 
     class Config:
         # allow population by field name when constructing model programmatically
@@ -49,6 +54,11 @@ class DatasetMappingResponse(BaseModel):
     template_id: Optional[str] = Field(None, alias="templateId", description="关联的模板ID")
     template: Optional['AnnotationTemplateResponse'] = Field(None, description="关联的标注模板详情")
     label_config: Optional[str] = Field(None, alias="labelConfig", description="实际使用的 Label Studio XML 配置")
+    segmentation_enabled: Optional[bool] = Field(
+        None,
+        alias="segmentationEnabled",
+        description="是否启用文本分段",
+    )
     total_count: int = Field(0, alias="totalCount", description="数据集总数据量")
     annotated_count: int = Field(0, alias="annotatedCount", description="已标注数据量")
     created_at: datetime = Field(..., alias="createdAt", description="创建时间")
@@ -62,4 +72,4 @@ class DatasetMappingResponse(BaseModel):
 class DeleteDatasetResponse(BaseResponseModel):
     """删除数据集响应模型"""
     id: str = Field(..., description="映射UUID")
-    status: str = Field(..., description="删除状态")
\ No newline at end of file
+    status: str = Field(..., description="删除状态")
diff --git a/runtime/datamate-python/app/module/annotation/service/editor.py b/runtime/datamate-python/app/module/annotation/service/editor.py
index be7dd1f..2c18594 100644
--- a/runtime/datamate-python/app/module/annotation/service/editor.py
+++ b/runtime/datamate-python/app/module/annotation/service/editor.py
@@ -56,6 +56,7 @@ TEXTUAL_OBJECT_CATEGORIES = {"text", "document"}
 MEDIA_OBJECT_CATEGORIES = {"image"}
 OBJECT_NAME_HEADER_PREFIX = "dm_object_header_"
 SUPPORTED_EDITOR_DATASET_TYPES = ("TEXT", "IMAGE")
+SEGMENTATION_ENABLED_KEY = "segmentation_enabled"
 
 
 class AnnotationEditorService:
@@ -149,6 +150,18 @@ class AnnotationEditorService:
             label_config = self._decorate_label_config_for_editor(label_config)
         return label_config
 
+    @staticmethod
+    def _resolve_segmentation_enabled(project: LabelingProject) -> bool:
+        config = project.configuration
+        if not isinstance(config, dict):
+            return True
+        value = config.get(SEGMENTATION_ENABLED_KEY)
+        if isinstance(value, bool):
+            return value
+        if value is None:
+            return True
+        return bool(value)
+
     @classmethod
     def _resolve_primary_text_key(cls, label_config: Optional[str]) -> Optional[str]:
         if not label_config:
@@ -513,13 +526,19 @@ class AnnotationEditorService:
         ls_task_id = self._make_ls_task_id(project.id, file_id)
 
         # 判断是否需要分段（JSONL 多行或主文本超过阈值）
-        needs_segmentation = len(records) > 1 or any(
-            len(text or "") > self.SEGMENT_THRESHOLD for text in record_texts
+        segmentation_enabled = self._resolve_segmentation_enabled(project)
+        if not segmentation_enabled:
+            segment_index = None
+        needs_segmentation = segmentation_enabled and (
+            len(records) > 1 or any(len(text or "") > self.SEGMENT_THRESHOLD for text in record_texts)
         )
         segments: Optional[List[SegmentInfo]] = None
         current_segment_index = 0
         display_text = record_texts[0] if record_texts else text_content
         selected_payload = records[0][0] if records else None
+        if not segmentation_enabled and len(records) > 1:
+            selected_payload = None
+            display_text = "\n".join(record_texts) if record_texts else text_content
 
         segment_annotations: Dict[str, Any] = {}
         if ann and ann.annotation and ann.annotation.get("segmented"):
diff --git a/runtime/datamate-python/app/module/annotation/service/mapping.py b/runtime/datamate-python/app/module/annotation/service/mapping.py
index cad7362..10b466d 100644
--- a/runtime/datamate-python/app/module/annotation/service/mapping.py
+++ b/runtime/datamate-python/app/module/annotation/service/mapping.py
@@ -90,9 +90,11 @@ class DatasetMappingService:
         configuration = getattr(mapping, 'configuration', None) or {}
         label_config = None
         description = None
+        segmentation_enabled = None
         if isinstance(configuration, dict):
             label_config = configuration.get('label_config')
             description = configuration.get('description')
+            segmentation_enabled = configuration.get('segmentation_enabled')
 
         # Optionally fetch full template details
         template_response = None
@@ -117,6 +119,7 @@ class DatasetMappingService:
             "template_id": template_id,
             "template": template_response,
             "label_config": label_config,
+            "segmentation_enabled": segmentation_enabled,
             "total_count": total_count,
             "annotated_count": annotated_count,
             "created_at": mapping.created_at,
@@ -154,9 +157,11 @@ class DatasetMappingService:
         configuration = getattr(mapping, 'configuration', None) or {}
         label_config = None
         description = None
+        segmentation_enabled = None
         if isinstance(configuration, dict):
             label_config = configuration.get('label_config')
             description = configuration.get('description')
+            segmentation_enabled = configuration.get('segmentation_enabled')
 
         # Optionally fetch full template details
         template_response = None
@@ -184,6 +189,7 @@ class DatasetMappingService:
             "template_id": template_id,
             "template": template_response,
             "label_config": label_config,
+            "segmentation_enabled": segmentation_enabled,
             "total_count": total_count,
             "annotated_count": annotated_count,
             "created_at": mapping.created_at,
@@ -526,4 +532,4 @@ class DatasetMappingService:
         for row in rows:
             response = await self._to_response_from_row(row, include_template=include_template)
             responses.append(response)
-        return responses, total
\ No newline at end of file
+        return responses, total