diff --git "a/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/README.md" "b/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/README.md"
index 826848ea79387..68b0c1530f460 100644
--- "a/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/README.md"	
+++ "b/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/README.md"	
@@ -295,6 +295,41 @@ var lowestCommonAncestor = function (root, p, q) {
 };
 ```
 
+#### Swift
+
+```swift
+/* public class TreeNode {
+*     public var val: Int
+*     public var left: TreeNode?
+*     public var right: TreeNode?
+*     public init() { self.val = 0; self.left = nil; self.right = nil; }
+*     public init(_ val: Int) { self.val = val; self.left = nil; self.right = nil; }
+*     public init(_ val: Int, _ left: TreeNode?, _ right: TreeNode?) {
+*         self.val = val
+*         self.left = left
+*         self.right = right
+*     }
+* }
+*/
+
+class Solution {
+    func lowestCommonAncestor(_ root: TreeNode?, _ p: TreeNode, _ q: TreeNode) -> TreeNode? {
+        if root == nil || root === p || root === q {
+            return root
+        }
+
+        let left = lowestCommonAncestor(root?.left, p, q)
+        let right = lowestCommonAncestor(root?.right, p, q)
+
+        if let _ = left, let _ = right {
+            return root
+        }
+
+        return left ?? right
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- solution:end -->
diff --git "a/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/Solution.swift" "b/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/Solution.swift"
new file mode 100644
index 0000000000000..c56b48c9622ba
--- /dev/null
+++ "b/lcof/\351\235\242\350\257\225\351\242\23068 - II. \344\272\214\345\217\211\346\240\221\347\232\204\346\234\200\350\277\221\345\205\254\345\205\261\347\245\226\345\205\210/Solution.swift"	
@@ -0,0 +1,30 @@
+/* public class TreeNode {
+*     public var val: Int
+*     public var left: TreeNode?
+*     public var right: TreeNode?
+*     public init() { self.val = 0; self.left = nil; self.right = nil; }
+*     public init(_ val: Int) { self.val = val; self.left = nil; self.right = nil; }
+*     public init(_ val: Int, _ left: TreeNode?, _ right: TreeNode?) {
+*         self.val = val
+*         self.left = left
+*         self.right = right
+*     }
+* }
+*/
+
+class Solution {
+    func lowestCommonAncestor(_ root: TreeNode?, _ p: TreeNode, _ q: TreeNode) -> TreeNode? {
+        if root == nil || root === p || root === q {
+            return root
+        }
+
+        let left = lowestCommonAncestor(root?.left, p, q)
+        let right = lowestCommonAncestor(root?.right, p, q)
+
+        if let _ = left, let _ = right {
+            return root
+        }
+
+        return left ?? right
+    }
+}