diff --git a/backend/apps/chat/task/llm.py b/backend/apps/chat/task/llm.py
index 6671291f..f59d6ad9 100644
--- a/backend/apps/chat/task/llm.py
+++ b/backend/apps/chat/task/llm.py
@@ -38,7 +38,7 @@ from apps.system.crud.assistant import AssistantOutDs, AssistantOutDsFactory, ge
 from apps.system.schemas.system_schema import AssistantOutDsSchema
 from common.core.config import settings
 from common.core.deps import CurrentAssistant, CurrentUser
-from common.utils.utils import SQLBotLogUtil, extract_nested_json
+from common.utils.utils import SQLBotLogUtil, extract_nested_json, prepare_for_orjson
 
 warnings.filterwarnings("ignore")
 
@@ -716,6 +716,10 @@ class LLMService:
         return save_error_message(session=self.session, record_id=self.record.id, message=message)
 
     def save_sql_data(self, data_obj: Dict[str, Any]):
+        data_result = data_obj.get('data')
+        if data_result:
+            data_result = prepare_for_orjson(data_result)
+            data_obj['data'] = data_result
         return save_sql_exec_data(session=self.session, record_id=self.record.id,
                                   data=orjson.dumps(data_obj).decode())
 
diff --git a/backend/common/utils/utils.py b/backend/common/utils/utils.py
index 9d35dd4b..a0281df5 100644
--- a/backend/common/utils/utils.py
+++ b/backend/common/utils/utils.py
@@ -1,3 +1,4 @@
+import base64
 import hashlib
 import inspect
 import logging
@@ -215,6 +216,20 @@ class SQLBotLogUtil:
         logger = SQLBotLogUtil._get_logger()
         if logger.isEnabledFor(logging.CRITICAL):
             logger._log(logging.CRITICAL, msg, args, **kwargs)
+            
+def prepare_for_orjson(data):
+    if not data:
+        return data
+    if isinstance(data, bytes):
+        return base64.b64encode(data).decode('utf-8')
+    elif isinstance(data, dict):
+        return {k: prepare_for_orjson(v) for k, v in data.items()}
+    elif isinstance(data, (list, tuple)):
+        return [prepare_for_orjson(item) for item in data]
+    else:
+        return data
+        
+