diff --git a/lyrebird/mock/handlers/handler_context.py b/lyrebird/mock/handlers/handler_context.py
index d007d3632..591dd4f5d 100644
--- a/lyrebird/mock/handlers/handler_context.py
+++ b/lyrebird/mock/handlers/handler_context.py
@@ -189,6 +189,9 @@ def get_request_body(self, in_request_handler=True):
         else:
             if in_request_handler:
                 _data = self.request.data or self.request.form or None
+            # When origin_request is not saved, the original data cannot be obtained when diff-mode is enabled.
+            elif self.flow.get('origin_request', {}).get('data'):
+                _data = self.flow.get('origin_request', {}).get('data')
             else:
                 _data = DataHelper.flow2origin(self.flow['request'])
         return _data
diff --git a/lyrebird/version.py b/lyrebird/version.py
index 74bd5144d..a87433bee 100644
--- a/lyrebird/version.py
+++ b/lyrebird/version.py
@@ -1,3 +1,3 @@
-IVERSION = (2, 21, 0)
+IVERSION = (2, 21, 1)
 VERSION = ".".join(str(i) for i in IVERSION)
 LYREBIRD = "Lyrebird " + VERSION