diff --git a/nets/yolo_training.py b/nets/yolo_training.py
index dc068b486f517ba4f3a78b6139282e40f28630f3..25b14405e6109b02b8b1886c9ae9507e8e9c6951 100644
--- a/nets/yolo_training.py
+++ b/nets/yolo_training.py
@@ -231,9 +231,9 @@ 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