diff --git a/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md b/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md
index 9727fb08925da68aef2e1a57aaa3b717b8f762bd..b6f36afd6030a3f361283a46b81d55824d75e2fb 100644
--- a/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md
+++ b/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md
@@ -191,7 +191,7 @@ rt_err_t rt_mb_recv (rt_mailbox_t mb, rt_uint32_t* value, rt_int32_t timeout);
 | value         | 邮件内容       |
 | timeout       | 超时时间       |
 |**返回**     | ——             |
-| RT_EOK        | 发送成功       |
+| RT_EOK        | 接收成功       |
 | \-RT_ETIMEOUT | 超时           |
 | \-RT_ERROR    | 失败，返回错误 |