diff --git a/dnnlibrary/CMakeLists.txt b/dnnlibrary/CMakeLists.txt
index 8e05e28..d864a49 100644
--- a/dnnlibrary/CMakeLists.txt
+++ b/dnnlibrary/CMakeLists.txt
@@ -6,7 +6,6 @@ set(dnnlibrary_src
     ${PROJECT_SOURCE_DIR}/include/dnnlibrary/DaqReader.h
     ${PROJECT_SOURCE_DIR}/include/dnnlibrary/nnapi_implementation.h
     android_log_helper.h
-    operand_helper.h
     flatbuffers_helper.h
     ModelBuilder.cpp
     ModelBuilderImpl.cpp
diff --git a/dnnlibrary/ModelBuilder.cpp b/dnnlibrary/ModelBuilder.cpp
index be13609..8a524dd 100644
--- a/dnnlibrary/ModelBuilder.cpp
+++ b/dnnlibrary/ModelBuilder.cpp
@@ -17,7 +17,6 @@
 #include <common/helper.h>
 #include <dnnlibrary/android_log_helper.h>
 #include <dnnlibrary/nnapi_helper.h>
-#include <dnnlibrary/operand_helper.h>
 #include <glog/logging.h>
 
 namespace dnn {
diff --git a/dnnlibrary/operand_helper.h b/dnnlibrary/operand_helper.h
deleted file mode 100644
index 734ae80..0000000
--- a/dnnlibrary/operand_helper.h
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// Created by daquexian on 7/24/18.
-//
-
-#ifndef PROJECT_OPERAND_HELPER_H
-#define PROJECT_OPERAND_HELPER_H
-
-#include <iostream>
-#include <tuple>
-
-/*
-#define ADD_OPERANDS(...)   \
-template <typename... Args> \
-std::tuple<Args...> t(__VA_ARGS__)
-
-template <typename Tuple, size_t N>
-void addOperand(const Tuple &tuple) {
-    addOperand<Tuple, N-1>(tuple);
-}
-
-template <typename Tuple>
-void addOperand<Tuple, 0>(const Tuple &tuple) {
-};
-
-template <typename... Args>
-class DefineOperands {
-    std::tuple<Args...> t;
-
-    explicit DefineOperands(Args&... args): t(args) {
-
-    }
-};
- */
-
-template <typename... Ts>
-void addOperand2(const std::tuple<Ts...> &tuple) {
-    std::apply([](const auto &item) { std::cout << item << std::endl; }, tuple);
-}
-
-template <typename... Ts>
-void print_tuple(const std::tuple<Ts...> &tuple) {
-    std::apply([](const auto &... item) { ((std::cout << item << '\n'), ...); },
-               tuple);
-}
-#endif  // PROJECT_OPERAND_HELPER_H