diff --git a/problems/0100.相同的树.md b/problems/0100.相同的树.md
index 210418f7..4b6eb7aa 100644
--- a/problems/0100.相同的树.md
+++ b/problems/0100.相同的树.md
@@ -240,6 +240,20 @@ Go：
 
 JavaScript：
 
+> 递归法
+
+```javascript
+var isSameTree = function (p, q) {
+    if (p == null && q == null)
+        return true;
+    if (p == null || q == null)
+        return false;
+    if (p.val != q.val)
+        return false;
+    return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);
+};
+```
+
 TypeScript:
 
 > 递归法-先序遍历