diff --git a/debug/accuracy_tools/msprobe/core/compare/acc_compare.py b/debug/accuracy_tools/msprobe/core/compare/acc_compare.py
index 9fd13743aba451627b681164fcd4d0bc749fb28d..9ecf3ce4f28369a78c7b35b61855802c8e1326d0 100644
--- a/debug/accuracy_tools/msprobe/core/compare/acc_compare.py
+++ b/debug/accuracy_tools/msprobe/core/compare/acc_compare.py
@@ -667,7 +667,7 @@ class CalcStatsDiff:
         result_df.loc[cond_nan_diff, [diff_name, rel_err_name]] = CompareConst.NAN
 
         cond_not_nan_diff = cond_valid_stat & ~cond_diff_nan
-        condition_pt_zero = bench_val == 0
+        condition_pt_zero = self.get_number(bench_val) == 0
         result_df.loc[cond_not_nan_diff & condition_pt_zero, rel_err_name] = CompareConst.N_A
 
         # 相对误差转成百分比字符串