diff --git a/problems/0027.移除元素.md b/problems/0027.移除元素.md
index 3a93ac88..5e7742ee 100644
--- a/problems/0027.移除元素.md
+++ b/problems/0027.移除元素.md
@@ -329,5 +329,20 @@ int removeElement(int* nums, int numsSize, int val){
 }
 ```
 
+C#:
+```csharp
+public class Solution {
+    public int RemoveElement(int[] nums, int val) {
+        int slow = 0;
+        for (int fast = 0; fast < nums.Length; fast++) {
+            if (val != nums[fast]) {
+                nums[slow++] = nums[fast];
+            }
+        }
+        return slow;
+    }
+}
+```
+
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 <div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>