diff --git a/docs/changes.md b/docs/changes.md
index fe59d2d04..292fed2ac 100644
--- a/docs/changes.md
+++ b/docs/changes.md
@@ -1,4 +1,7 @@
 # 最新动态
+* 2020/03/24
+    * 增加工具 remove\_utf8\_bom
+
 * 2020/03/23
   * 增加函数 tk_strlen。
   * 完善圆角矩形（感谢智明提供补丁）。
diff --git a/tools/remove_utf8_bom/README.md b/tools/remove_utf8_bom/README.md
new file mode 100644
index 000000000..331586aae
--- /dev/null
+++ b/tools/remove_utf8_bom/README.md
@@ -0,0 +1,11 @@
+# 去掉UTF-8前的BOM
+
+有的编译器不支持UTF-8 BOM，此时需要取到去掉UTF-8 BOM文件的BOM.
+
+用法(bash)：
+
+```
+find src -name \*.h -exec node tools/remove_utf8_bom/index.js {} \;
+```
+
+> 请安装[nodejs](https://nodejs.org)。
\ No newline at end of file
diff --git a/tools/remove_utf8_bom/index.js b/tools/remove_utf8_bom/index.js
new file mode 100644
index 000000000..7dc78184a
--- /dev/null
+++ b/tools/remove_utf8_bom/index.js
@@ -0,0 +1,12 @@
+var fs = require('fs');
+var options = {encoding:"utf8"};
+
+var filename = process.argv.length > 2 ? process.argv[2] : "test.c";
+
+var content = fs.readFileSync(filename).toString();
+if(content.charCodeAt(0) === 0xfeff) {
+  content = content.substr(1);
+  fs.writeFileSync(filename, content, options);
+  console.log(filename + " done");
+}
+