diff --git a/firstleg/src/main/java/com/baiyue/firstleg/loading/repository/LoadingRepository.java b/firstleg/src/main/java/com/baiyue/firstleg/loading/repository/LoadingRepository.java
index 221f62e3d..9ffd2e52b 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/loading/repository/LoadingRepository.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/loading/repository/LoadingRepository.java
@@ -61,6 +61,17 @@ public class LoadingRepository {
             .eq(LoadingEvidenceEntity::getSealNo, sealNo));
     }
 
+    public LoadingEvidenceEntity findActiveEvidenceByFile(long tenantId, long inboundId,
+                                                           String evidenceType, long fileId) {
+        return evidences.selectOne(new LambdaQueryWrapper<LoadingEvidenceEntity>()
+            .eq(LoadingEvidenceEntity::getTenantId, tenantId)
+            .eq(LoadingEvidenceEntity::getInboundId, inboundId)
+            .eq(LoadingEvidenceEntity::getEvidenceType, evidenceType)
+            .eq(LoadingEvidenceEntity::getFileId, fileId)
+            .eq(LoadingEvidenceEntity::getStatus, "ACTIVE")
+            .last("LIMIT 1"));
+    }
+
     public void createEvidence(LoadingEvidenceEntity entity) { evidences.insert(entity); }
 
     public int voidEvidence(long tenantId, long inboundId, long evidenceId, String reason,
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java b/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java
index 52467a049..8e97acbdc 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/loading/service/LoadingDeliveryService.java
@@ -34,6 +34,7 @@ import java.security.MessageDigest;
 import java.util.HexFormat;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 import java.util.function.Function;
 import java.util.stream.Collectors;
@@ -74,6 +75,18 @@ public class LoadingDeliveryService {
                 throw new BizException(ResultCode.CONFLICT, "锁码已用于其他装柜任务");
             }
         }
+        LoadingEvidenceEntity existingFile = repository.findActiveEvidenceByFile(
+            tenantId, inboundId, request.evidenceType(), request.fileId());
+        if (existingFile != null) {
+            String requestedSealNo = LoadingEvidenceType.SEAL.equals(request.evidenceType())
+                ? request.sealNo().trim() : null;
+            if (!Objects.equals(existingFile.getSealNo(), requestedSealNo)) {
+                throw new BizException(ResultCode.CONFLICT, "该带锁码照已绑定其他锁码，请先作废后重新拍摄");
+            }
+            LoadingActionResponse result = new LoadingActionResponse(
+                requireInbound(tenantId, inboundId).processStatus(), evidenceResponse(tenantId, inboundId));
+            return complete(tenantId, inboundId, operatorId, UPSERT_EVIDENCE, key, result);
+        }
         var file = validateFile(tenantId, inboundId, request.fileId(), request.evidenceType());
         String fileName = file.fileName();
         String sealNo = LoadingEvidenceType.SEAL.equals(request.evidenceType()) ? request.sealNo().trim() : null;
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java
index 7fdc885e3..c2e32e59b 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/loading/service/LoadingDeliveryServiceTest.java
@@ -350,6 +350,24 @@ class LoadingDeliveryServiceTest {
             "PHOTO_STEP_1".equals(value.getEvidenceType()) && "ACTIVE".equals(value.getStatus())));
     }
 
+    @Test
+    void replaysTheSameActiveEvidenceFileWithoutAppendingAnotherRecord() {
+        when(repository.claimOperation(anyLong(), anyLong(), anyLong(), anyString(), anyString(), anyString())).thenReturn(true);
+        when(repository.findInbound(10, 20)).thenReturn(new Snapshot(20L, 10L, "LOADING", 3));
+        LoadingEvidenceEntity existing = evidence("SEAL", 11L, "LOCK-001");
+        existing.setId(99L); existing.setInboundId(20L); existing.setTenantId(10L); existing.setStatus("ACTIVE");
+        when(repository.findEvidenceBySealNo(10, "LOCK-001")).thenReturn(existing);
+        when(repository.findActiveEvidenceByFile(10, 20, "SEAL", 11L)).thenReturn(existing);
+        when(repository.listEvidence(10, 20)).thenReturn(List.of(existing));
+
+        LoadingActionResponse result = service.upsertEvidence(10, 20, 7, "admin", "same-seal-photo",
+            new UpsertEvidenceRequest(0, "SEAL", 11L, null, "LOCK-001", null));
+
+        assertThat(result.evidences().evidences()).hasSize(1);
+        verify(repository, never()).createEvidence(any());
+        verify(files, never()).validate(anyString(), anyLong(), anyLong(), anyLong());
+    }
+
     @Test
     void voidsPhotoWithReasonAndKeepsTheRecord() {
         when(repository.claimOperation(anyLong(), anyLong(), anyLong(), anyString(), anyString(), anyString())).thenReturn(true);