diff --git a/nets/CSPdarknet53.py b/nets/CSPdarknet53.py
index a838946778ec6f23bc109bc6b95fe5f787622bdb..d155fc5bf686157b53733330fbc98830fe741d75 100644
--- a/nets/CSPdarknet53.py
+++ b/nets/CSPdarknet53.py
@@ -26,12 +26,13 @@ class Mish(Layer):
 
 #--------------------------------------------------#
 #   单次卷积DarknetConv2D
-#   正则化系数为5e-4
 #   如果步长为2则自己设定padding方式。
+#   测试中发现没有l2正则化效果更好，所以去掉了l2正则化
 #--------------------------------------------------#
 @wraps(Conv2D)
 def DarknetConv2D(*args, **kwargs):
-    darknet_conv_kwargs = {'kernel_regularizer': l2(5e-4)}
+    # darknet_conv_kwargs = {'kernel_regularizer': l2(5e-4)}
+    darknet_conv_kwargs = {}
     darknet_conv_kwargs['padding'] = 'valid' if kwargs.get('strides')==(2,2) else 'same'
     darknet_conv_kwargs.update(kwargs)
     return Conv2D(*args, **darknet_conv_kwargs)