diff --git a/paddle/fluid/framework/scope.cc b/paddle/fluid/framework/scope.cc
index 4fe843dde9c6fe6698750d72b0f4fd03d9d56bbe..87f0f307d30bc90a43a698c3766b16c975f0635e 100644
--- a/paddle/fluid/framework/scope.cc
+++ b/paddle/fluid/framework/scope.cc
@@ -255,32 +255,5 @@ std::string GenScopeTreeDebugInfo(Scope* root) {
   return os.str();
 }
 
-std::string GenParentScopeTreeDebugInfo(Scope* leaf) {
-  std::stringstream os;
-
-  if (!leaf) return "";
-
-  // level traversal
-  std::vector<const Scope*> scopes;
-  const Scope* current_scope = leaf;
-
-  while (current_scope != nullptr) {
-    scopes.push_back(current_scope);
-    current_scope = current_scope->parent();
-  }
-
-  os << "\n--------------GenParentScopeTreeDebugInfo--------------\n";
-
-  for (int i = scopes.size() - 1; i >= 0; --i) {
-    os << "=======level [" << i << "]=======\n";
-    os << scopes[i] << ":\n";
-    for (auto& var : scopes[i]->LocalVarNames()) {
-      os << "  - " << var << "\n";
-    }
-  }
-
-  return os.str();
-}
-
 }  // namespace framework
 }  // namespace paddle
diff --git a/paddle/fluid/framework/scope.h b/paddle/fluid/framework/scope.h
index eb5c12def6a2f9e19d08f8aeaf5489f84d86ec94..f0915d2eee072b0bcd53f37dad5ef9d801c87172 100644
--- a/paddle/fluid/framework/scope.h
+++ b/paddle/fluid/framework/scope.h
@@ -144,7 +144,6 @@ class Scope {
 // Generate some debug string about the inherience structure of scope, quite
 // naive.
 std::string GenScopeTreeDebugInfo(Scope*);
-std::string GenParentScopeTreeDebugInfo(Scope*);
 
 }  // namespace framework
 }  // namespace paddle