diff --git a/profiler/cluster_analyse/analysis/cluster_display.py b/profiler/cluster_analyse/analysis/cluster_display.py
index 7b8b00959df09d11d1579af4989d245af8e61216..bdb4254499d272d40f5900d4038b140a94c0e193 100644
--- a/profiler/cluster_analyse/analysis/cluster_display.py
+++ b/profiler/cluster_analyse/analysis/cluster_display.py
@@ -203,6 +203,8 @@ def display_stats_per_rank_groups_combobox(rank_stats_gdf):
         dropdown.value = names[0]
     elif len(names) == 1:
         __display_stats_per_rank_group(names[0], rank_stats_gdf)
+    else:
+        print("cluster_display func:input rank_stats_gdf groups is null so no need to display")
 
 
 def __display_stats_per_rank_group(selected, rank_stats_gdf):