diff --git a/ai-analytic-center-biz/src/main/java/com/volvo/ai/analytic/center/service/impl/DiFyServiceImpl.java b/ai-analytic-center-biz/src/main/java/com/volvo/ai/analytic/center/service/impl/DiFyServiceImpl.java
index 862ee18..dce5453 100644
--- a/ai-analytic-center-biz/src/main/java/com/volvo/ai/analytic/center/service/impl/DiFyServiceImpl.java
+++ b/ai-analytic-center-biz/src/main/java/com/volvo/ai/analytic/center/service/impl/DiFyServiceImpl.java
@@ -77,11 +77,12 @@ public class DiFyServiceImpl implements DiFyService{
 
             if (data.get("status").equals("failed")) {
                 log.info("execDifyFlow failed, aiAnalysisRequestId:{} , data:{}",aiAnalysisRequestId,data);
+                String errorMsg = data.getString("error");
                 aiAnalysisErrorsService.saveAiAnalysisErrors(AiAnalysisErrors.builder()
                         .aiAnalysisRequestId(aiAnalysisRequestId)
                         .aiAnalysisRequestType(businessType)
                         .aiAnalysisErrorHandlingStatus("0")
-                        .aiAnalysisErrorMessage(data.getString("error").substring(0,1000))
+                        .aiAnalysisErrorMessage(errorMsg.length()>1000?errorMsg.substring(0,1000):errorMsg)
                         .build());
             }