diff --git a/backend/apps/chat/task/llm.py b/backend/apps/chat/task/llm.py
index c3966624..94fe239e 100644
--- a/backend/apps/chat/task/llm.py
+++ b/backend/apps/chat/task/llm.py
@@ -555,7 +555,7 @@ class LLMService:
             keywords=keywords)
 
         # Get sample data for all tables
-        if not self.out_ds_instance:
+        if not self.out_ds_instance and settings.SAMPLE_DATA_ENABLED:
             self.chat_question.sample_data = get_tables_sample_data(
                 session=_session,
                 current_user=self.current_user,
diff --git a/backend/common/core/config.py b/backend/common/core/config.py
index cb9f9b2d..0373728f 100644
--- a/backend/common/core/config.py
+++ b/backend/common/core/config.py
@@ -130,6 +130,7 @@ class Settings(BaseSettings):
     TABLE_EMBEDDING_COUNT: int = 10
     TABLE_EMBEDDING_ALPHA: float = 0.4  # weight for vector score; (1-alpha) is keyword weight
     TABLE_EMBEDDING_KEYWORD_ENABLED: bool = True
+    SAMPLE_DATA_ENABLED: bool = True  # 是否获取表示例数据，关闭可提升响应速度
     DS_EMBEDDING_COUNT: int = 10
 
     ORACLE_CLIENT_PATH: str = '/opt/sqlbot/db_client/oracle_instant_client'
@@ -141,6 +142,7 @@ class Settings(BaseSettings):
                      'PG_POOL_PRE_PING',
                      'TABLE_EMBEDDING_ENABLED',
                      'TABLE_EMBEDDING_KEYWORD_ENABLED',
+                     'SAMPLE_DATA_ENABLED',
                      mode='before')
     @classmethod
     def lowercase_bool(cls, v: Any) -> Any: