diff --git a/test/core/test_metrics.py b/test/core/test_metrics.py
index db508e39..a5f7c0c3 100644
--- a/test/core/test_metrics.py
+++ b/test/core/test_metrics.py
@@ -4,7 +4,6 @@ import numpy as np
 import torch
 
 from fastNLP import AccuracyMetric
-from fastNLP import BMESF1PreRecMetric
 from fastNLP.core.metrics import _pred_topk, _accuracy_topk