diff --git a/lite/kernels/xpu/bridges/cast_op.cc b/lite/kernels/xpu/bridges/cast_op.cc
index 4b56abcd61a1459391b7520cb5d0b4c17f901f40..056822feb54b3859afa49c75d9fc8ccb19a48520 100644
--- a/lite/kernels/xpu/bridges/cast_op.cc
+++ b/lite/kernels/xpu/bridges/cast_op.cc
@@ -78,7 +78,11 @@ int CastConverter(void* ctx, OpLite* op, KernelBase* kernel) {
   if (graph->Has(x_name)) {
     x_node = graph->Get(x_name);
   } else {
-    x_node = graph->Add(x_name, *x, in_ptype);
+    CHECK(x->precision() == in_ptype)
+        << "The data type of input tensor X should be "
+        << PrecisionToStr(in_ptype) << ", but received "
+        << PrecisionToStr(x->precision());
+    x_node = graph->Add(x_name, *x);
   }
 
   // Cast node