diff --git a/debug/accuracy_tools/msprobe/core/common/const.py b/debug/accuracy_tools/msprobe/core/common/const.py
index 5f27bf467b1e592cf7c6aea9cd1dd34e2280b96f..45f4c44008c46f4d0267080b9058993e39628fab 100644
--- a/debug/accuracy_tools/msprobe/core/common/const.py
+++ b/debug/accuracy_tools/msprobe/core/common/const.py
@@ -233,6 +233,7 @@ class Const:
     NORM = 'Norm'
     DATA_NAME = 'data_name'
     TENSOR_STAT_INDEX = 'tensor_stat_index'
+    SUMMARY_METRICS_LIST = [MAX, MIN, MEAN, NORM]
 
     CODE_STACK = 'Code Stack'
     OP_NAME = 'Op Name'
diff --git a/debug/accuracy_tools/msprobe/core/compare/utils.py b/debug/accuracy_tools/msprobe/core/compare/utils.py
index 809c17d603b1704c215bfa524ae5b13f8cd8ed84..4da1adfa0908b66679b11f9f3ffadaaf237c1177 100644
--- a/debug/accuracy_tools/msprobe/core/compare/utils.py
+++ b/debug/accuracy_tools/msprobe/core/compare/utils.py
@@ -215,7 +215,10 @@ def merge_tensor(tensor_list, dump_mode):
             op_dict.get(struct_key).append((tensor[Const.DTYPE], tensor[Const.SHAPE], tensor[Const.MD5]))
         else:
             op_dict.get(struct_key).append((tensor[Const.DTYPE], tensor[Const.SHAPE]))
-        op_dict[Const.SUMMARY].append([tensor[Const.MAX], tensor[Const.MIN], tensor[Const.MEAN], tensor[Const.NORM]])
+
+        # 当统计量为None时，转成字符串None，避免后续操作list放到pd中时None被默认转成NaN
+        op_dict[Const.SUMMARY].append(
+            [str(tensor[key]) if tensor[key] is None else tensor[key] for key in Const.SUMMARY_METRICS_LIST])
 
         if dump_mode == Const.ALL:
             op_dict["data_name"].append(tensor['data_name'])