diff --git a/frontend/src/pages/KnowledgeManagement/components/KnowledgeItemEditor.tsx b/frontend/src/pages/KnowledgeManagement/components/KnowledgeItemEditor.tsx
index 77a89ba..88039de 100644
--- a/frontend/src/pages/KnowledgeManagement/components/KnowledgeItemEditor.tsx
+++ b/frontend/src/pages/KnowledgeManagement/components/KnowledgeItemEditor.tsx
@@ -1,31 +1,16 @@
 import { useEffect, useState } from "react";
-import { Button, DatePicker, Form, Input, message, Modal, Select, Upload, UploadFile } from "antd";
+import { Button, Form, message, Modal, Upload, UploadFile } from "antd";
 import { UploadOutlined } from "@ant-design/icons";
-import dayjs from "dayjs";
 import {
   downloadKnowledgeItemFileUsingGet,
   replaceKnowledgeItemFileUsingPut,
-  updateKnowledgeItemByIdUsingPut,
   uploadKnowledgeItemsUsingPost,
 } from "../knowledge-management.api";
-import {
-  knowledgeStatusOptions,
-} from "../knowledge-management.const";
 import {
   KnowledgeContentType,
   KnowledgeItem,
   KnowledgeSourceType,
-  KnowledgeStatusType,
 } from "../knowledge-management.model";
-import { queryDatasetTagsUsingGet } from "@/pages/DataManagement/dataset.api";
-
-const stripFileExtension = (fileName: string) => {
-  const dotIndex = fileName.lastIndexOf(".");
-  if (dotIndex <= 0) {
-    return fileName;
-  }
-  return fileName.slice(0, dotIndex);
-};
 
 export default function KnowledgeItemEditor({
   open,
@@ -42,115 +27,38 @@ export default function KnowledgeItemEditor({
   onCancel: () => void;
   onSuccess: () => void;
 }) {
-  const [form] = Form.useForm();
-  const [tagOptions, setTagOptions] = useState<{ label: string; value: string }[]>([]);
   const [fileList, setFileList] = useState<UploadFile[]>([]);
   const [replaceFileList, setReplaceFileList] = useState<UploadFile[]>([]);
-  const [titleBeforeReplace, setTitleBeforeReplace] = useState<string | null>(null);
-  const isMultiFile = fileList.length > 1;
   const isFileItem =
     data?.contentType === KnowledgeContentType.FILE ||
     data?.sourceType === KnowledgeSourceType.FILE_UPLOAD;
   const isCreateMode = !data?.id;
-  const contentTypeLabel = isCreateMode
-    ? "文件"
-    : data?.contentType === KnowledgeContentType.MARKDOWN
-      ? "Markdown"
-      : data?.contentType === KnowledgeContentType.TEXT
-        ? "文本"
-        : "文件";
-
-  const fetchTags = async () => {
-    try {
-      const { data: tagData } = await queryDatasetTagsUsingGet();
-      const options = Array.isArray(tagData)
-        ? tagData.map((tag) => ({ label: tag.name, value: tag.name }))
-        : [];
-      setTagOptions(options);
-    } catch (error) {
-      console.error("获取标签失败", error);
-    }
-  };
 
   useEffect(() => {
-    if (open) {
-      fetchTags();
-    }
-  }, [open]);
-
-  useEffect(() => {
-    if (open) {
-      if (data?.id) {
-        form.setFieldsValue({
-          title: data.title,
-          status: data.status ?? KnowledgeStatusType.DRAFT,
-          domain: data.domain,
-          businessLine: data.businessLine,
-          owner: data.owner,
-          sensitivity: data.sensitivity,
-          validFrom: data.validFrom ? dayjs(data.validFrom) : null,
-          validTo: data.validTo ? dayjs(data.validTo) : null,
-          tags: data.tags?.map((tag) => tag.name) || [],
-          metadata: data.metadata,
-        });
-        setTitleBeforeReplace(null);
-      } else {
-        form.resetFields();
-        form.setFieldsValue({
-          status: KnowledgeStatusType.DRAFT,
-          tags: [],
-        });
-        setTitleBeforeReplace(null);
-      }
-      setFileList([]);
-      setReplaceFileList([]);
-    } else {
-      setFileList([]);
-      setReplaceFileList([]);
-      setTitleBeforeReplace(null);
-    }
-  }, [open, data, form]);
+    setFileList([]);
+    setReplaceFileList([]);
+  }, [open, data?.id]);
 
   const handleFileBeforeUpload = (file: File) => {
-    setFileList((prev) => {
-      const nextList = [
-        ...prev,
-        {
-          uid: `${Date.now()}-${file.name}`,
-          name: file.name,
-          status: "done",
-          originFileObj: file,
-        },
-      ];
-      if (nextList.length === 1) {
-        const currentTitle = form.getFieldValue("title");
-        if (!currentTitle) {
-          form.setFieldsValue({
-            title: stripFileExtension(file.name),
-          });
-        }
-      }
-      return nextList;
-    });
+    setFileList((prev) => [
+      ...prev,
+      {
+        uid: `${Date.now()}-${file.name}`,
+        name: file.name,
+        status: "done",
+        originFileObj: file,
+      },
+    ]);
     message.success("文件已就绪，可提交创建条目");
     return false;
   };
 
   const handleFileRemove = (removedFile: UploadFile) => {
-    setFileList((prev) => {
-      const nextList = prev.filter((file) => file.uid !== removedFile.uid);
-      if (!data?.id && nextList.length === 0) {
-        form.setFieldsValue({ title: undefined });
-      }
-      return nextList;
-    });
+    setFileList((prev) => prev.filter((file) => file.uid !== removedFile.uid));
     return true;
   };
 
   const handleReplaceFileBeforeUpload = (file: File) => {
-    if (!titleBeforeReplace) {
-      setTitleBeforeReplace(form.getFieldValue("title") || null);
-    }
     setReplaceFileList([
       {
         uid: `${Date.now()}-${file.name}`,
@@ -159,17 +67,12 @@ export default function KnowledgeItemEditor({
         originFileObj: file,
       },
     ]);
-    form.setFieldsValue({ title: stripFileExtension(file.name) });
     message.success("已选择替换文件，提交后生效");
     return false;
   };
 
   const handleReplaceFileRemove = (removedFile: UploadFile) => {
     setReplaceFileList((prev) => prev.filter((file) => file.uid !== removedFile.uid));
-    if (titleBeforeReplace !== null) {
-      form.setFieldsValue({ title: titleBeforeReplace || undefined });
-      setTitleBeforeReplace(null);
-    }
     return true;
   };
 
@@ -187,47 +90,11 @@ export default function KnowledgeItemEditor({
 
   const handleSubmit = async () => {
     try {
-      if (!data?.id && fileList.length === 0) {
-        message.warning("请先选择文件");
-        return;
-      }
-      const values = await form.validateFields();
-      const validFrom = values.validFrom ? values.validFrom.format("YYYY-MM-DD") : undefined;
-      const validTo = values.validTo ? values.validTo.format("YYYY-MM-DD") : undefined;
-
-      if (validFrom && validTo && dayjs(validFrom).isAfter(dayjs(validTo))) {
-        message.warning("有效期开始不能晚于结束时间");
-        return;
-      }
-
-      if (data?.id) {
-        const payload: Record<string, unknown> = {
-          ...values,
-          validFrom,
-          validTo,
-          tags: values.tags || [],
-        };
-        if (replaceFileList.length > 0) {
-          delete payload.title;
-        }
-        await updateKnowledgeItemByIdUsingPut(setId, data.id, payload);
-        if (replaceFileList.length > 0) {
-          const formData = new FormData();
-          const replaceFile = replaceFileList[0]?.originFileObj as File | undefined;
-          if (!replaceFile) {
-            message.warning("请先选择要替换的文件");
-            return;
-          }
-          formData.append("file", replaceFile);
-          await replaceKnowledgeItemFileUsingPut(setId, data.id, formData);
-        }
-        message.success("知识条目更新成功");
-      } else {
+      if (isCreateMode) {
         if (fileList.length === 0) {
           message.warning("请先选择文件");
           return;
         }
-
         const formData = new FormData();
         fileList.forEach((file) => {
           const origin = file.originFileObj as File | undefined;
@@ -235,45 +102,33 @@ export default function KnowledgeItemEditor({
             formData.append("files", origin);
           }
         });
-        if (fileList.length === 1 && values.title) {
-          formData.append("title", values.title);
-        }
-        if (values.status) {
-          formData.append("status", values.status);
-        }
-        if (values.tags && Array.isArray(values.tags)) {
-          values.tags.forEach((tag) => formData.append("tags", tag));
-        }
-        if (values.domain) {
-          formData.append("domain", values.domain);
-        }
-        if (values.businessLine) {
-          formData.append("businessLine", values.businessLine);
-        }
-        if (values.owner) {
-          formData.append("owner", values.owner);
-        }
-        if (values.sensitivity) {
-          formData.append("sensitivity", values.sensitivity);
-        }
-        if (validFrom) {
-          formData.append("validFrom", validFrom);
-        }
-        if (validTo) {
-          formData.append("validTo", validTo);
-        }
-        if (values.metadata) {
-          formData.append("metadata", values.metadata);
-        }
-
         await uploadKnowledgeItemsUsingPost(setId, formData);
         message.success(`已创建 ${fileList.length} 个知识条目`);
+      } else {
+        if (!data?.id) {
+          return;
+        }
+        if (!isFileItem) {
+          message.info("该条目非文件类型，无需替换文件");
+          return;
+        }
+        if (replaceFileList.length === 0) {
+          message.warning("请先选择要替换的文件");
+          return;
+        }
+        const replaceFile = replaceFileList[0]?.originFileObj as File | undefined;
+        if (!replaceFile) {
+          message.warning("请先选择要替换的文件");
+          return;
+        }
+        const formData = new FormData();
+        formData.append("file", replaceFile);
+        await replaceKnowledgeItemFileUsingPut(setId, data.id, formData);
+        message.success("知识条目更新成功");
       }
 
-      form.resetFields();
       setFileList([]);
       setReplaceFileList([]);
-      setTitleBeforeReplace(null);
       onSuccess();
     } catch {
       message.error("操作失败，请重试");
@@ -294,7 +149,7 @@ export default function KnowledgeItemEditor({
       maskClosable={false}
       okButtonProps={{ disabled: readOnly }}
     >
-      <Form form={form} layout="vertical" disabled={readOnly}>
+      <Form layout="vertical" disabled={readOnly}>
         {isCreateMode && (
           <Form.Item label="上传文件" required>
             <Upload
@@ -312,95 +167,31 @@ export default function KnowledgeItemEditor({
             </div>
           </Form.Item>
         )}
-        {!isCreateMode && (
-          <>
-            <div className="grid grid-cols-2 gap-4">
-              <Form.Item
-                label="标题"
-                name="title"
-                rules={[{ required: !isMultiFile, message: "请输入标题" }]}
-              >
-                <Input
-                  placeholder={isMultiFile ? "多文件将按文件名自动生成" : "请输入标题"}
-                  disabled={readOnly || (!data?.id && isMultiFile)}
-                />
-              </Form.Item>
-              <Form.Item label="状态" name="status">
-                <Select options={knowledgeStatusOptions} />
-              </Form.Item>
+        {!isCreateMode && isFileItem && (
+          <Form.Item label="文件">
+            <div className="flex items-center gap-2">
+              <span className="truncate" title={data?.sourceFileId || data?.title}>
+                {data?.sourceFileId || data?.title || "-"}
+              </span>
+              <Button size="small" onClick={handleDownloadFile} disabled={readOnly}>
+                下载
+              </Button>
             </div>
-            {data?.id && isFileItem && (
-              <Form.Item label="文件">
-                <div className="flex items-center gap-2">
-                  <span className="truncate" title={data.sourceFileId || data.title}>
-                    {data.sourceFileId || data.title || "-"}
-                  </span>
-                  <Button size="small" onClick={handleDownloadFile} disabled={readOnly}>
-                    下载
-                  </Button>
-                </div>
-              </Form.Item>
-            )}
-            {data?.id && isFileItem && !readOnly && (
-              <Form.Item label="替换文件">
-                <Upload
-                  beforeUpload={handleReplaceFileBeforeUpload}
-                  fileList={replaceFileList}
-                  onRemove={handleReplaceFileRemove}
-                  showUploadList={{ showPreviewIcon: false }}
-                  maxCount={1}
-                >
-                  <Button icon={<UploadOutlined />}>选择文件</Button>
-                </Upload>
-                <div className="text-xs text-gray-500 mt-1">仅支持单文件，替换后标题自动更新</div>
-              </Form.Item>
-            )}
-            <div className="grid grid-cols-2 gap-4">
-              <Form.Item label="内容类型">
-                <Input value={contentTypeLabel} disabled />
-              </Form.Item>
-              <Form.Item label="敏感级别" name="sensitivity">
-                <Input placeholder="请输入敏感级别" />
-              </Form.Item>
-            </div>
-            <div className="grid grid-cols-2 gap-4">
-              <Form.Item label="领域" name="domain">
-                <Input placeholder="请输入领域" />
-              </Form.Item>
-              <Form.Item label="业务线" name="businessLine">
-                <Input placeholder="请输入业务线" />
-              </Form.Item>
-            </div>
-            <div className="grid grid-cols-2 gap-4">
-              <Form.Item label="负责人" name="owner">
-                <Input placeholder="请输入负责人" />
-              </Form.Item>
-              <Form.Item label="标签" name="tags">
-                <Select
-                  mode="tags"
-                  options={tagOptions}
-                  placeholder="请选择或输入标签"
-                />
-              </Form.Item>
-            </div>
-            <div className="grid grid-cols-2 gap-4">
-              <Form.Item label="有效期开始" name="validFrom">
-                <DatePicker className="w-full" />
-              </Form.Item>
-              <Form.Item label="有效期结束" name="validTo">
-                <DatePicker className="w-full" />
-              </Form.Item>
-            </div>
-            <Form.Item label="扩展元数据" name="metadata">
-              <Input.TextArea placeholder="请输入元数据（JSON）" rows={3} />
-            </Form.Item>
-            {data?.sourceType && (
-              <div className="grid grid-cols-2 gap-4 text-sm text-gray-500">
-                <div>来源类型：{data.sourceType}</div>
-                <div>来源文件：{data.sourceFileId || "-"}</div>
-              </div>
-            )}
-          </>
+          </Form.Item>
+        )}
+        {!isCreateMode && isFileItem && !readOnly && (
+          <Form.Item label="替换文件">
+            <Upload
+              beforeUpload={handleReplaceFileBeforeUpload}
+              fileList={replaceFileList}
+              onRemove={handleReplaceFileRemove}
+              showUploadList={{ showPreviewIcon: false }}
+              maxCount={1}
+            >
+              <Button icon={<UploadOutlined />}>选择文件</Button>
+            </Upload>
+            <div className="text-xs text-gray-500 mt-1">仅支持单文件</div>
+          </Form.Item>
         )}
       </Form>
     </Modal>