diff --git a/doc/refactor/scope.md b/doc/design/scope.md
similarity index 97%
rename from doc/refactor/scope.md
rename to doc/design/scope.md
index 15759d6217..c8ca62688c 100644
--- a/doc/refactor/scope.md
+++ b/doc/design/scope.md
@@ -27,4 +27,4 @@ with ScopeGuard(scope)：
 Scope has a pointer point to it's parent scope, this is mainly used in RNN when it need to create many stepNet.
 
 
-### Scope Guard
\ No newline at end of file
+### Scope Guard