diff --git a/mlu_op_test.proto b/mlu_op_test.proto
index 26b43cf..943c48a 100755
--- a/mlu_op_test.proto
+++ b/mlu_op_test.proto
@@ -320,6 +320,7 @@ message Node {
   optional SyncBatchNormBackwardParam sync_batchnorm_backward_reduce_param = 38324;  // param
   optional StridedSliceParam  strided_slice_param = 44;  // param
   optional ConcatParam        concat_param = 54;         // param 
+  optional OpTensorParam      op_tensor_param = 101;     // param
 }
 
 
@@ -433,6 +434,12 @@ enum IndicesType{
   BIT16_INDICES = 1;
 }
 
+enum OpTensorDesc {
+  OP_TENSOR_ADD = 1;
+  OP_TENSOR_SUB = 2;
+  OP_TENSOR_MUL = 3;
+}
+
 message ReduceParam {
   optional int32 axis          = 1 [default = 0];
   required ReduceTensorOp mode = 2 [default = REDUCE_TENSOR_MUL];
@@ -971,3 +978,12 @@ message StridedSliceParam {
 message ConcatParam {
   required int32 axis = 1 [default = 0];
 }
+
+// param to call mluOpOpTensor()
+message OpTensorParam {
+  optional float alpha1 = 1 [default = 1];
+  optional float alpha2 = 2 [default = 1];
+  optional float beta = 3 [default = 1];
+  optional OpTensorDesc op = 4 [default = OP_TENSOR_ADD];
+  optional bool input_same_addr = 5 [default = false];
+}