diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b3e6227acb58b3d8b3bf132fecf60c5298f172f..bcab53eb12a87881900894e3ab1e657d17d6af1f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.0)
 option(USE_OPENMP "openmp support" OFF)
 
 project(paddle-mobile)
diff --git a/tools/build.sh b/tools/build.sh
index baa9fe1097b774418899cb20f2f1e63520fa7792..e7eadd738935f782c6a8d98cae400b7b2b771e98 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -92,6 +92,32 @@ build_for_android() {
     make -j 8
 }
 
+
+build_for_arm_linux() {
+    MODE="Release"
+    ARM_LINUX="arm-linux"
+
+    if [ "${#NETS}" -gt 1 ]; then
+        cmake .. \
+            -B"../build/release/arm-linux" \
+            -DCMAKE_BUILD_TYPE="${MODE}" \
+#            -DCMAKE_TOOLCHAIN_FILE="./tools/toolchains/arm-linux-gnueabihf.cmake" \
+            -DCMAKE_CXX_FLAGS="-std=c++14 -mcpu=cortex-a53 -mtune=cortex-a53 -mfpu=neon-vfpv4 -mfloat-abi=hard -ftree-vectorize -funsafe-math-optimizations  -pipe -mlittle-endian -munaligned-access" \
+            -DNET="${NETS}" \
+            -D"V7"=true
+    else
+        cmake .. \
+            -B"../build/release/arm-linux" \
+            -DCMAKE_BUILD_TYPE="${MODE}" \
+            -DCMAKE_TOOLCHAIN_FILE="./tools/toolchains/arm-linux-gnueabihf.cmake" \
+            -DCMAKE_CXX_FLAGS="-std=c++14 -mcpu=cortex-a53 -mtune=cortex-a53 -mfpu=neon-vfpv4 -mfloat-abi=hard -ftree-vectorize -funsafe-math-optimizations  -pipe -mlittle-endian -munaligned-access" \
+            -D"V7"=true
+    fi
+
+    cd "../build/release/arm-linux"
+    make -j 8
+}
+
 build_for_ios() {
 #    rm -rf "../build"
     PLATFORM="ios"
@@ -135,7 +161,7 @@ if [ $# -lt 1 ]; then
     echo "sample usage: ./build.sh android"
 else
     params=($@)
-    for(( i=1; i<$#; i++ )); do  
+    for(( i=1; i<$#; i++ )); do
         if [ ${i} != 1 ]; then
             NETS=$NETS$";"
         fi
@@ -162,6 +188,8 @@ else
 
     if [ $1 = "android" ]; then
         build_for_android
+    elif [ $1 = "arm_linux" ]; then
+        build_for_arm_linux
     elif [ $1 = "ios" ]; then
         build_for_ios
     else
diff --git a/tools/toolchains/arm-linux-gnueabihf.cmake b/tools/toolchains/arm-linux-gnueabihf.cmake
new file mode 100644
index 0000000000000000000000000000000000000000..7db42c7e73f4cfabce670bb2bc691e4b5bd314a2
--- /dev/null
+++ b/tools/toolchains/arm-linux-gnueabihf.cmake
@@ -0,0 +1,11 @@
+# CMake toolchain file for building ARM software on Linux environment
+
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR arm)
+set(CMAKE_SYSTEM_VERSION 1)
+
+message("if U build on platform . this is right.")
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
\ No newline at end of file