diff --git a/src/main/java/com/ycwl/basic/repository/SourceRepository.java b/src/main/java/com/ycwl/basic/repository/SourceRepository.java
index 36c159d1..dbd06d8d 100644
--- a/src/main/java/com/ycwl/basic/repository/SourceRepository.java
+++ b/src/main/java/com/ycwl/basic/repository/SourceRepository.java
@@ -129,6 +129,21 @@ public class SourceRepository {
             sourcesMap.forEach((key, value) -> {
                 value.removeIf(item -> !value.getFirst().equals(item));
             });
+        } else {
+            // 找出重复的templatePlaceholder，修改对应的sourceMap[key]中的list顺序为倒序
+            Map<String, Long> placeholderCounts = templatePlaceholder.stream()
+                    .collect(Collectors.groupingBy(placeholder -> placeholder, Collectors.counting()));
+            
+            placeholderCounts.entrySet().stream()
+                    .filter(entry -> entry.getValue() > 1)
+                    .map(Map.Entry::getKey)
+                    .forEach(duplicatePlaceholder -> {
+                        // 对于重复的占位符，找到对应的设备ID并倒序sourceMap中的列表
+                        if (sourcesMap.containsKey(duplicatePlaceholder)) {
+                            List<SourceEntity> sourceList = sourcesMap.get(duplicatePlaceholder);
+                            java.util.Collections.reverse(sourceList);
+                        }
+                    });
         }
 
         boolean hasPPlaceholder = templatePlaceholder.stream().anyMatch(placeholder -> placeholder.startsWith("P"));