diff --git a/agents/haonan/workspace/dev-workflow/stats.py b/agents/haonan/workspace/dev-workflow/stats.py
index 126e51a..fd615b8 100644
--- a/agents/haonan/workspace/dev-workflow/stats.py
+++ b/agents/haonan/workspace/dev-workflow/stats.py
@@ -34,7 +34,15 @@ def _load_stats_data() -> Dict[str, Any]:
     try:
         with open(STATS_FILE, 'r', encoding='utf-8') as f:
             return json.load(f)
-    except (json.JSONDecodeError, IOError):
+    except json.JSONDecodeError as e:
+        # 备份损坏的文件
+        backup_path = STATS_FILE.with_suffix(f'.corrupted.{datetime.now().strftime("%Y%m%d_%H%M%S")}.bak')
+        try:
+            STATS_FILE.rename(backup_path)
+        except OSError:
+            pass  # 备份失败时忽略
+        return {"events": [], "metadata": {"created_at": datetime.now().isoformat()}}
+    except IOError:
         return {"events": [], "metadata": {"created_at": datetime.now().isoformat()}}