diff --git a/python/federatedml/statistic/statics.py b/python/federatedml/statistic/statics.py
index fab4d4efcd..967604767a 100755
--- a/python/federatedml/statistic/statics.py
+++ b/python/federatedml/statistic/statics.py
@@ -587,6 +587,9 @@ def merge_count_dict(x, y):
             return x
 
         data_mode_summary = data_reduce_by_col_val.mapPartitions(func).reduce(merge_count_dict)
+        diff = set(data_overview.get_header(data)).difference(set(data_mode_summary.keys()))
+        if diff:
+            LOGGER.warning(f"Following columns do not have mode: {diff}.")
         return data_mode_summary
 
     def get_mode(self, col=None, multi_mode='random'):