diff --git a/problems/0349.两个数组的交集.md b/problems/0349.两个数组的交集.md
index 8daf5a35..26a9286d 100644
--- a/problems/0349.两个数组的交集.md
+++ b/problems/0349.两个数组的交集.md
@@ -465,6 +465,25 @@ object Solution {
 	}
 
 ```
+
+###Ruby
+```ruby
+def intersection(nums1, nums2)
+  hash = {}
+  result = {}
+
+  nums1.each do |num|
+    hash[num] = 1 if hash[num].nil?
+  end
+
+  nums2.each do |num|
+    #取nums1和nums2交集
+    result[num] = 1 if hash[num] != nil
+  end
+
+  return result.keys
+end
+```
 ## 相关题目
 
 * [350.两个数组的交集 II](https://leetcode.cn/problems/intersection-of-two-arrays-ii/)