diff --git a/nets/yolo_training.py b/nets/yolo_training.py
index 656a49f078ad42bff43998470003dda113a7f505..b7b03cad7440583001627aacb7d2f5667f1036d2 100644
--- a/nets/yolo_training.py
+++ b/nets/yolo_training.py
@@ -274,9 +274,9 @@ class YOLOLoss(nn.Module):
         LongTensor = torch.cuda.LongTensor if x.is_cuda else torch.LongTensor
 
         # 生成网格，先验框中心，网格左上角
-        grid_x = torch.linspace(0, in_w - 1, in_w).repeat(in_w, 1).repeat(
+        grid_x = torch.linspace(0, in_w - 1, in_w).repeat(in_h, 1).repeat(
             int(bs*self.num_anchors/3), 1, 1).view(x.shape).type(FloatTensor)
-        grid_y = torch.linspace(0, in_h - 1, in_h).repeat(in_h, 1).t().repeat(
+        grid_y = torch.linspace(0, in_h - 1, in_h).repeat(in_w, 1).t().repeat(
             int(bs*self.num_anchors/3), 1, 1).view(y.shape).type(FloatTensor)
 
         # 生成先验框的宽高