diff --git a/paddle/pten/kernels/hybird/cuda/reduce/reduce.h b/paddle/pten/kernels/hybird/cuda/reduce/reduce.h
index c88965e6defea5cd2c6f042ab179877ef30f45ce..f55d483de14621da6068ec33e1ede5eb0290a297 100644
--- a/paddle/pten/kernels/hybird/cuda/reduce/reduce.h
+++ b/paddle/pten/kernels/hybird/cuda/reduce/reduce.h
@@ -61,7 +61,7 @@ void Reduce(const CUDAContext& dev_ctx,
 
   gpuStream_t stream = dev_ctx.stream();
 
-  if (out_dtype != pten::DataType::UNDEFINED) {
+  if (out_dtype != pten::DataType::UNDEFINED && out_dtype != x.dtype()) {
     PD_DISPATCH_FLOATING_AND_INTEGRAL_AND_COMPLEX_TYPES(
         out_dtype, "TensorReduceFunctorImpl", ([&] {
           pten::detail::TensorReduceFunctorImpl<T, data_t, ReduceFunctor>(