diff --git a/app/my_first_app/BUILD.gn b/app/my_first_app/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..24941d3340f1ce4539d5b29eda796e9e09b4830d
--- /dev/null
+++ b/app/my_first_app/BUILD.gn
@@ -0,0 +1,20 @@
+# Copyright (c) 2020-2022 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.
+
+static_library("myapp") {
+  sources = [ "hello_world.c" ]
+
+  include_dirs = [
+    "//utils/native/lite/include"
+  ]
+}
diff --git a/app/my_first_app/hello_world.c b/app/my_first_app/hello_world.c
new file mode 100644
index 0000000000000000000000000000000000000000..8464718a9b37635ca9ce931b376d8577a3acc109
--- /dev/null
+++ b/app/my_first_app/hello_world.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+#include "ohos_init.h"
+#include "ohos_types.h"
+
+void HelloWorld(void)
+{
+    printf("[DEMO] hello, world!\n");
+}
+SYS_RUN(HelloWorld);