diff --git a/python/paddle/fluid/metrics.py b/python/paddle/fluid/metrics.py
index 782a0762af9216fdd0f2739af1ce57a25e66ccbb..d871b24f8b902267d8f4d754408f09fcea900e4f 100644
--- a/python/paddle/fluid/metrics.py
+++ b/python/paddle/fluid/metrics.py
@@ -759,9 +759,6 @@ class DetectionMAP(object):
 
             cur_map, accum_map = map_evaluator.get_map_var()
 
-            # see detailed examples at 
-            https://github.com/PaddlePaddle/models/blob/43cdafbb97e52e6d93cc5bbdc6e7486f27665fc8/PaddleCV/object_detection
-
  
     """