diff --git a/jeecg-module-custom/src/main/java/org/jeecg/module/custom/ocr/api/thread/DuplicateTaskRunner.java b/jeecg-module-custom/src/main/java/org/jeecg/module/custom/ocr/api/thread/DuplicateTaskRunner.java
index db0aa2c..40b1000 100644
--- a/jeecg-module-custom/src/main/java/org/jeecg/module/custom/ocr/api/thread/DuplicateTaskRunner.java
+++ b/jeecg-module-custom/src/main/java/org/jeecg/module/custom/ocr/api/thread/DuplicateTaskRunner.java
@@ -224,6 +224,15 @@ public class DuplicateTaskRunner {
 
     private boolean notifyTaskCompletion(String taskNo, Long tenantNo, Long accountNo, double maxSimilarity, List<OcrPictureInfo> pictures, List<TaskCompletionRequest.HisPictureRepeat> historyLists) {
         try {
+            // 去重
+            List<TaskCompletionRequest.HisPictureRepeat> hisPictureRepeats = historyLists.stream()
+                    .collect(Collectors.collectingAndThen(
+                            Collectors.toMap(
+                                    TaskCompletionRequest.HisPictureRepeat::getHisTaskNo, // 按 hisTaskNo 作为 key
+                                    hisPictureRepeat -> hisPictureRepeat,                // 保留整个对象
+                                    (existing, replacement) -> existing),                // 保留第一个出现的元素
+                            map -> new ArrayList<>(map.values())
+                    ));
             // 构造任务完成数据
             TaskCompletionRequest.TaskCompletionData data = new TaskCompletionRequest.TaskCompletionData();
             data.setTenantNo(tenantNo);
@@ -243,7 +252,7 @@ public class DuplicateTaskRunner {
                         repeat.setImgName(p.getImgName());
                         repeat.setImgUrl(p.getImageUrl());
                         repeat.setDynamicFields(new HashMap<>()); // 动态字段待补充
-                        repeat.setHisPictureRepeatList(historyLists);
+                        repeat.setHisPictureRepeatList(hisPictureRepeats);
                         return repeat;
                     })
                     .collect(Collectors.toList());