diff --git a/update-service/src/main/java/com/xuqm/update/controller/GlobalExceptionHandler.java b/update-service/src/main/java/com/xuqm/update/controller/GlobalExceptionHandler.java
index 6238145..6eccf7a 100644
--- a/update-service/src/main/java/com/xuqm/update/controller/GlobalExceptionHandler.java
+++ b/update-service/src/main/java/com/xuqm/update/controller/GlobalExceptionHandler.java
@@ -46,8 +46,13 @@ public class GlobalExceptionHandler {
     @ExceptionHandler(Exception.class)
     public ResponseEntity<ApiResponse<Void>> handle(Exception ex) {
         log.error("Unhandled exception", ex);
+        String detail = ex.getClass().getSimpleName() + ": " + ex.getMessage();
+        Throwable cause = ex.getCause();
+        if (cause != null) {
+            detail += " | caused by: " + cause.getClass().getSimpleName() + ": " + cause.getMessage();
+        }
         return ResponseEntity.internalServerError()
-                .body(ApiResponse.error(500, "服务器内部错误"));
+                .body(ApiResponse.error(500, detail));
     }
 
     private HttpStatus resolveStatus(int code) {