diff --git a/paddle/fluid/framework/mixed_vector.h b/paddle/fluid/framework/mixed_vector.h
index 114c21c26cd18516d9b4c5df6c489816edd222e5..c1a89a1261c7ff025df51ce0dfba9b9206e30197 100644
--- a/paddle/fluid/framework/mixed_vector.h
+++ b/paddle/fluid/framework/mixed_vector.h
@@ -132,10 +132,6 @@ class Vector {
 
   const T* cend() const { return end(); }
 
-  const T* cbegin() const { return begin(); }
-
-  const T* cend() const { return end(); }
-
   const T& back() const {
     auto it = end();
     --it;