diff --git a/mindspore/ops/operations/_grad_ops.py b/mindspore/ops/operations/_grad_ops.py
index e440e0a0b89c159054b358bfba7c61e73c5ca07d..ad081ad12262426b0132e587d4bbd99e28cb527a 100644
--- a/mindspore/ops/operations/_grad_ops.py
+++ b/mindspore/ops/operations/_grad_ops.py
@@ -1125,7 +1125,7 @@ class ResizeBilinearGrad(PrimitiveWithInfer):
         return orig_shape
 
     def infer_dtype(self, dout_dtype, orig_type):
-        return dout_dtype
+        return orig_type
 
 
 class ResizeNearestNeighborGrad(PrimitiveWithInfer):