diff --git a/modules/planning/common/open_space_info.h b/modules/planning/common/open_space_info.h
index 48452935f7c44e1e532ad4d1acbcddb3c7f5775c..f3729602c403a9b85a1d76425afea2444d8aed31 100644
--- a/modules/planning/common/open_space_info.h
+++ b/modules/planning/common/open_space_info.h
@@ -229,6 +229,7 @@ class OpenSpaceInfo {
   }
 
   const std::vector<TrajGearPair> &paritioned_trajectories() const {
+    // to-do(Runxin): export to chart
     return paritioned_trajectories_;
   }
 
@@ -245,6 +246,7 @@ class OpenSpaceInfo {
   }
 
   const TrajGearPair &chosen_paritioned_trajectory() const {
+    // to-do(Runxin): export to chart
     return chosen_paritioned_trajectory_;
   }
 
diff --git a/modules/planning/conf/planning.conf b/modules/planning/conf/planning.conf
index 8451c9841f0d73214dbea37d069e0462ab62f894..7b370a664c1c843fc74a358edeecc3cd249a9077 100644
--- a/modules/planning/conf/planning.conf
+++ b/modules/planning/conf/planning.conf
@@ -15,7 +15,6 @@
 --enable_scenario_side_pass
 --enable_scenario_traffic_light
 --enable_collision_detection
---export_chart=true
 
 # --smoother_config_filename=/apollo/modules/planning/conf/spiral_smoother_config.pb.txt
 # --smoother_config_filename=/apollo/modules/planning/conf/cosTheta_smoother_config.pb.txt
@@ -31,6 +30,7 @@
 # --open_space_planner_switchable=true
 # --enable_open_space_planner_thread=true
 # --enable_record_debug=true
+# --export_chart=true
 # --use_gear_shift_trajectory=true
 # --enable_parallel_hybrid_a=true
 # --enable_parallel_open_space_smoother=false
diff --git a/modules/planning/on_lane_planning.cc b/modules/planning/on_lane_planning.cc
index fdc9a93eaa5d81919e485003d7960f0260868f73..c8e90939a99db7212e58df108c3f3ea70997e9eb 100644
--- a/modules/planning/on_lane_planning.cc
+++ b/modules/planning/on_lane_planning.cc
@@ -414,11 +414,10 @@ Status OnLanePlanning::Plan(
     if (FLAGS_enable_record_debug) {
       ptr_debug->MergeFrom(frame_->open_space_info().debug_instance());
       ADEBUG << "Open space debug information added!";
-      if (FLAGS_export_chart) {
-        // call open space info load debug
-        ExportOpenSpaceChart(frame_->open_space_info().debug_instance(),
-                             ptr_debug);
-      }
+      // call open space info load debug
+      // to-do: runxin, create a new flag to enable openspace chart
+      ExportOpenSpaceChart(frame_->open_space_info().debug_instance(),
+                           ptr_debug);
     }
   } else {
     const auto* best_ref_info = frame_->FindDriveReferenceLineInfo();