diff --git a/fastdeploy/engine/args_utils.py b/fastdeploy/engine/args_utils.py
index 81d980bf80..eeef7930f1 100644
--- a/fastdeploy/engine/args_utils.py
+++ b/fastdeploy/engine/args_utils.py
@@ -268,7 +268,7 @@ class EngineArgs:
     """
     Flag to enable prefix caching.
     """
-    enable_output_caching: bool = True
+    enable_output_caching: bool = False
     """
     Flag to enable kv cache for output tokens, only valid in V1 scheduler.
     """