diff --git a/.gn b/.gn
new file mode 100644
index 0000000000000000000000000000000000000000..10d86795bea852279c227ea3a02a8c8f586bb48b
--- /dev/null
+++ b/.gn
@@ -0,0 +1 @@
+buildconfig = "//build/BUILDCONFIG.gn"
diff --git a/BUILD.gn b/BUILD.gn
new file mode 120000
index 0000000000000000000000000000000000000000..8bdffaafd2ea295859b3fe759632df545d0f5987
--- /dev/null
+++ b/BUILD.gn
@@ -0,0 +1 @@
+build/gn/BUILD.gn
\ No newline at end of file
diff --git a/build.sh b/build.sh
new file mode 120000
index 0000000000000000000000000000000000000000..1698326c584e733cf45d47a12b25b6238958f3e1
--- /dev/null
+++ b/build.sh
@@ -0,0 +1 @@
+build/build.sh
\ No newline at end of file
diff --git a/build/build.sh b/build/build.sh
new file mode 100755
index 0000000000000000000000000000000000000000..48c0777a563e1cc82dfe2c98123b6b0d914b1106
--- /dev/null
+++ b/build/build.sh
@@ -0,0 +1,46 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set +e
+
+# Get project dir
+SCRIPT_DIR=$(cd $(dirname $0); pwd)
+SCRIPT_BASE_DIR=$(basename "$SCRIPT_DIR")
+
+if [[ $SCRIPT_BASE_DIR == "build" ]]; then
+    echo -e "\033[31m[!] Please exec \"build.sh\" at project root dir.\033[0m"
+    exit 1
+else
+    PROJECT_DIR=$SCRIPT_DIR
+    while [[ ! -f "${SCRIPT_DIR}/.gn" ]]; do
+        SCRIPT_DIR="$(dirname "${SCRIPT_DIR}")"
+        if [[ "${SCRIPT_DIR}" == "/" ]]; then
+            echo -e "\033[31m[!] Cannot find project root dir from $(pwd)\033[0m"
+            exit 1
+        fi
+    done
+fi
+
+if [[ "${PROJECT_DIR}x" == "x" ]]; then
+  echo "\033[31m[!] project root dir cannot be empty.\033[0m"
+  exit 1
+fi
+
+# Exec builder
+
+# Check builder result
+if [[ "$?" -ne 0 ]]; then
+    echo -e "\033[31m[!] Build failed.\033[0m"
+    exit 1
+fi
+echo -e "\033[0;32m[-] Build done.\033[0m"
diff --git a/build/gn/BUILD.gn b/build/gn/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..c6e020f8fdde0fdda1fde9f09261a13af0005e75
--- /dev/null
+++ b/build/gn/BUILD.gn
@@ -0,0 +1,15 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+group("ft_engine") {
+}
diff --git a/build/gn/BUILDCONFIG.gn b/build/gn/BUILDCONFIG.gn
new file mode 100644
index 0000000000000000000000000000000000000000..268a845a901f60c7e86161c0059b00d4625ba568
--- /dev/null
+++ b/build/gn/BUILDCONFIG.gn
@@ -0,0 +1,147 @@
+# Copyright (c) 2023 Huawei Technologies Co., Ltd. All rights reserved.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License
+
+print("[GN INFO] host_os :", host_os)
+print("[GN INFO] host_cpu :", host_cpu)
+
+if (target_os == "") {
+  target_os = host_os
+} else {
+  print("[GN INFO] target_os :", target_os)
+}
+
+if (host_os != "linux" || target_os != "linux") {
+  assert(false, "[GN ERROR] current only supported linux os")
+}
+
+if (target_cpu == "") {
+  target_cpu = host_cpu
+} else {
+  print("[GN INFO] target_cpu :", target_cpu)
+}
+
+if (current_os == "") {
+  current_os = target_os
+} else {
+  print("[GN INFO] current_os :", current_os)
+}
+
+if (current_cpu == "") {
+  current_cpu = target_cpu
+} else {
+  print("[GN INFO] current_cpu :", current_cpu)
+}
+
+declare_args() {
+  # We add this parameter to speed up link process, enable_lto_O0 default is false.
+  enable_lto_O0 = false
+
+  # Set to true when compiling with the Clang compiler
+  is_clang = true
+
+  # Allows the path to a custom target toolchain to be injected as a single
+  # argument, and set as the default toolchain.
+  custom_toolchain = ""
+
+  # This should not normally be set as a build argument.  It's here so that
+  # every toolchain can pass through the "global" value via toolchain_args().
+  host_toolchain = ""
+
+  use_musl = false
+  use_musl_oh = false
+
+  # Debug build. Enabling official builds automatically sets is_debug to false.
+  is_debug = true
+  ft_full_debug = true
+
+  project_root_dir = ""
+
+  is_ft_build = current_os == "linux"
+}
+
+if (use_musl_oh == true) {
+  assert(use_musl, "[GN ERROR] use_musl_oh = true, but use_musl = false")
+}
+
+# TOOLCHAIN SETUP
+if (host_toolchain == "") {
+  if (is_clang) {
+    host_toolchain = "//build/gn/toolchain/linux:clang_$host_cpu"
+  } else {
+    host_toolchain = "//build/gn/toolchain/linux:$host_cpu"
+  }
+}
+
+if (is_clang) {
+  _default_toolchain = "//build/gn/toolchain/linux:clang_$target_cpu"
+} else {
+  assert(false,
+       "[GN ERROR] Unsupported all compilers except clang currently.")
+  # _default_toolchain = "//build/gn/toolchain/linux:gcc_$target_cpu"
+}
+
+if (_default_toolchain != "") {
+  set_default_toolchain(_default_toolchain)
+}
+
+# TARGET DEFAULTS CONFIGS
+default_compiler_configs = [ 
+  "//build/gn/configs/compiler:compiler",
+  "//build/gn/configs/compiler:runtime_library",
+  # Default Optimization level
+  "//build/gn/configs/compiler:default_optimization",
+  "//build/gn/configs/compiler:default_stack_frames",
+  # Default Symbol level
+  "//build/gn/configs/compiler:default_symbols",
+  "//build/gn/configs/compiler:no_common",
+  # Other
+  "//build/gn/configs/compiler:export_dynamic",
+  "//build/gn/configs/compiler:no_exceptions",
+  "//build/gn/configs/compiler:no_rtti",
+  "//build/gn/configs/compiler:thin_archive",
+]
+
+# Debug/release-related defines.
+if (is_debug) {
+  default_compiler_configs += [ "//build/gn/configs:debug" ]
+} else {
+  default_compiler_configs += [ "//build/gn/configs:release" ]
+}
+
+# Static libraries and source sets use only the compiler ones.
+set_defaults("static_library") {
+  configs = default_compiler_configs
+}
+set_defaults("source_set") {
+  configs = default_compiler_configs
+}
+
+# Executable defaults.
+default_executable_configs = default_compiler_configs + [
+  "//build/gn/configs:default_libs",
+  "//build/gn/configs:executable_config"
+]
+
+set_defaults("executable") {
+  configs = default_executable_configs
+}
+
+# Shared library and loadable module defaults (also for components in component mode).
+default_shared_library_configs = default_compiler_configs + [
+  "//build/gn/configs:default_libs",
+  "//build/gn/configs:shared_library_config"
+]
+
+set_defaults("shared_library") {
+  configs = default_shared_library_configs
+}
diff --git a/display_server/README.md b/display_server/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..bca95bfeef1ef05f086c6d413652af9b67f00cfe
--- /dev/null
+++ b/display_server/README.md
@@ -0,0 +1,4 @@
+# display_server 
+
+#### 介绍
+display server目录是 ft engine 的显示服务部分。
diff --git a/window_manager/README.md b/window_manager/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..d3f1e226fcef590fa53cecc6f7991b975447a856
--- /dev/null
+++ b/window_manager/README.md
@@ -0,0 +1,4 @@
+# window_manager 
+
+#### 介绍
+window_manager目录是 ft engine 的窗口管理部分。