diff --git a/README.md b/README.md
index 6fa711e..f88badb 100644
--- a/README.md
+++ b/README.md
@@ -222,6 +222,7 @@
 * [overArgs](overArgs.md)
 * [castArray](castArray.md)
 * [keysIn](keysIn.md)
+* [clone](clone.md)
 
 ## License
 
diff --git a/SUMMARY.md b/SUMMARY.md
index 6bb5ff1..d84f6a2 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -201,4 +201,5 @@
 + [overArgs](overArgs.md)
 + [castArray](castArray.md)
 + [keysIn](keysIn.md)
++ [clone](clone.md)
 
diff --git a/clone.md b/clone.md
new file mode 100644
index 0000000..86c0636
--- /dev/null
+++ b/clone.md
@@ -0,0 +1,35 @@
+# lodash源码分析之clone
+
+本文为读 lodash 源码的第一百九十九篇，后续文章会更新到这个仓库中，欢迎 star：[pocket-lodash](https://github.com/yeyuqiudeng/pocket-lodash)
+
+gitbook也会同步仓库的更新，gitbook地址：[pocket-lodash](https://www.gitbook.com/book/yeyuqiudeng/pocket-lodash/details)
+
+## 依赖
+
+```javascript
+import baseClone from './.internal/baseClone.js'
+```
+
+[《lodash源码分析之baseClone》](internal/baseClone.md)
+
+
+## 源码分析
+
+`clone` 会对传入的 `value` 做浅复制，源码如下：
+
+```javascript
+const CLONE_SYMBOLS_FLAG = 4
+function clone(value) {
+  return baseClone(value, CLONE_SYMBOLS_FLAG)
+}
+```
+
+可以看到，其实调用的是 `baseClone` ，并且 `bitmask` 传入的是 `CLONE_SYMBOLS_FLAG`，即复制 `Symbol` 类型的属性。
+
+## License
+
+[署名-非商业性使用-禁止演绎 4.0 国际 (CC BY-NC-ND 4.0)](http://creativecommons.org/licenses/by-nc-nd/4.0/)
+
+最后，所有文章都会同步发送到微信公众号上，欢迎关注,欢迎提意见：  ![](https://raw.githubusercontent.com/yeyuqiudeng/resource/master/images/qrcode_front-end-article.jpg) 
+
+作者：对角另一面 
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