diff --git a/lcof/面试题40. 最小的k个数/README.md b/lcof/面试题40. 最小的k个数/README.md
index b5a7a183bb..3281f5b384 100644
--- a/lcof/面试题40. 最小的k个数/README.md	
+++ b/lcof/面试题40. 最小的k个数/README.md	
@@ -208,6 +208,17 @@ public class Solution {
 }
 ```
 
+#### Swift
+
+```swift
+class Solution {
+    func getLeastNumbers(_ arr: [Int], _ k: Int) -> [Int] {
+        let sortedArr = arr.sorted()
+        return Array(sortedArr.prefix(k))
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- solution:end -->
diff --git a/lcof/面试题40. 最小的k个数/Solution.swift b/lcof/面试题40. 最小的k个数/Solution.swift
new file mode 100644
index 0000000000..322571fe0f
--- /dev/null
+++ b/lcof/面试题40. 最小的k个数/Solution.swift	
@@ -0,0 +1,6 @@
+class Solution {
+    func getLeastNumbers(_ arr: [Int], _ k: Int) -> [Int] {
+        let sortedArr = arr.sorted()
+        return Array(sortedArr.prefix(k))
+    }
+}
\ No newline at end of file