diff --git a/UserInfoArray.md b/UserInfoArray.md
index de626ec..bdf5cdf 100644
--- a/UserInfoArray.md
+++ b/UserInfoArray.md
@@ -11,3 +11,14 @@ private static Map<UUID, UserInfo> m_UserInfoArray = new HashMap<UUID, UserInfo>
 | -------- | -------- |
 | 0x000     | 0x0000     |
 
+* Input: UUID
+* Output: Instance pointer
+
+### getUserName
+
+```
+public String getUserName(UUID uuid){ // 유저 이름 return
+        return m_UserInfoArray.get(uuid).getUserName();
+    }
+```
+Input
\ No newline at end of file