diff --git a/paddle/fluid/framework/ir/graph.cc b/paddle/fluid/framework/ir/graph.cc
index 3914e08d99547b22d82ec187fe405dc7b551373c..a174aa88d937bf2b9786863b5e21dedd2fc1af8f 100644
--- a/paddle/fluid/framework/ir/graph.cc
+++ b/paddle/fluid/framework/ir/graph.cc
@@ -17,7 +17,7 @@ limitations under the License. */
 #include "paddle/fluid/framework/ir/graph.h"
 #include "paddle/fluid/framework/operator.h"
 
-DEFINE_bool(convert_all_blocks, false,
+DEFINE_bool(convert_all_blocks, true,
             "Convert all blocks in program into SSAgraphs");
 
 namespace paddle {