diff --git a/client/src/apis/room.api.js b/client/src/apis/room.api.js
index 11d018fe0d92cd28d473f3772e761abff543f0f6..c2e02f095b00542a5f9f9591ae08cc2eec4f65c0 100644
--- a/client/src/apis/room.api.js
+++ b/client/src/apis/room.api.js
@@ -25,11 +25,17 @@ const joinChannel = async (payload) => {
   return data;
 };
 
-const makeChannel = async (payload) => {
-  const { data } = await axios.post("/api/room/makeChannel", payload);
+const doubleJoin = async (payload) => {
+  const { data } = await axios.post("/api/room/doubleJoin", payload);
   return data;
 };
 
-const roomApi = { getRoom, exitRoom, create, join, joinChannel, makeChannel };
+
+// const makeChannel = async (payload) => {
+//   const { data } = await axios.post("/api/room/makeChannel", payload);
+//   return data;
+// };
+
+const roomApi = { getRoom, exitRoom, create, join, joinChannel, doubleJoin };
 
 export default roomApi;
diff --git a/client/src/components/Room/ChannelSingle.js b/client/src/components/Room/ChannelSingle.js
index 33d780ee7c3747a94a8a2f63bd40827d938e3f12..6cf7caadae3a2e90d57d17820f1943eb150cf526 100644
--- a/client/src/components/Room/ChannelSingle.js
+++ b/client/src/components/Room/ChannelSingle.js
@@ -6,6 +6,7 @@ import catchErrors from "../../context/catchError";
 
 const ChannelSingle = (props) => {
   const [error, setError] = useState("");
+  const [userName, setUserName] = useState('');
   const [success, setSuccess] = useState(false);
   const [roomName, setRoomName] = useState('');
   const { roomId, channelId } = useParams();
@@ -18,15 +19,23 @@ const ChannelSingle = (props) => {
     console.log(e, userId)
     try {
       const data = await userApi.getUser(userId);
-      const el = indexCheck(e)
-      console.log(el)
-      const mem = props.channel[el].joinUser
-      console.log(mem)
+      setUserName(data.name)
+      const index1 = indexCheck(e)
+      const A = doubleJoinCheck(data.name)
+      console.log(A)
+      const mem = props.channel[index1].joinUser
       const joinCh = mem.includes(data.name);
-      console.log(joinCh)
+      console.log(A)
       if (!joinCh) {
-        const roomA = await roomApi.joinChannel({ roomId: roomId, channelName: e, plusUser: data.name, index: el })
-        console.log(roomA)
+        if (A) {
+          console.log('더블더블')
+          console.log(A.index1, A.index2, A.joinChName)
+          // { roomId: roomId, index1: A.index1, index2: A.index2, joinChName: A.joinChName }
+          const double = await roomApi.doubleJoin({ roomId: roomId, index1: A.index1, index2: A.index2, joinChName: A.joinChName })
+          console.log(double)
+        }
+        console.log('서버연결시작')
+        const roomA = await roomApi.joinChannel({ roomId: roomId, channelName: e, plusUser: data.name, index: index1 })
         setRoomName(e)
         setSuccess(true)
       } else {
@@ -40,12 +49,25 @@ const ChannelSingle = (props) => {
   console.log('정보들어왔나', roomName, success)
 
   function indexCheck(e) {
-    for (const el in props.channel) {
-      console.log('체크', props.channel[el].channelName, e)
-      console.log('체크', props.channel[el].channelName === e)
-      if (props.channel[el].channelName === e) {
-        console.log('el', el)
-        return el
+    for (const index1 in props.channel) {
+      if (props.channel[index1].channelName === e) {
+        return index1
+      }
+    }
+  }
+
+  function doubleJoinCheck(e) {
+    for (const index in props.channel) {
+      for (const el in props.channel[index].joinUser) {
+        if (props.channel[index].joinUser[el] === e) {
+          const doublejoinCh = props.channel[index].channelName
+          const A = {
+            index1: index,
+            index2: el,
+            joinChName: doublejoinCh,
+          }
+          return A
+        }
       }
     }
   }
diff --git a/server/controllers/room.controller.js b/server/controllers/room.controller.js
index 39f02d90d7cc6fe399bbf27fe71822f179f4c331..45bffb6dcb91997d2d4384127777f6c1019317ba 100644
--- a/server/controllers/room.controller.js
+++ b/server/controllers/room.controller.js
@@ -121,18 +121,33 @@ const exitRoom = async (req, res) => {
 
 const joinChannel = async (req, res) => {
   const { roomId, channelName, plusUser, index } = req.body
+  console.log('연결성공')
   const room = await Room.findOne({ where: { id: roomId } });
   room.channel[index][channelName].push(plusUser)
-  console.log('확인2',room.channel[index])
+  console.log('확인2', room.channel[index])
+  console.log('확인2', room.channel)
   await Room.update({ channel: room.channel }, { where: { id: roomId } });
   return res.json(true)
 }
 
-const makeChannel = async (req, res) => {
-  const { roomId, channelName } = req.body
-  console.log(roomId, channelName)
+const doubleJoin = async (req, res) => {
+  console.log('연결성공', req.body)
+  const { roomId, index1, index2, joinChName } = req.body
+  console.log(index1)
+  const room = await Room.findOne({ where: { id: roomId } });
+  console.log(room.channel[index1][joinChName])
+  room.channel[index1][joinChName].splice(index2, 1)
+  console.log(room.channel[index1][joinChName])
+  console.log('room.channel', room.channel)
+  await Room.update({ channel: room.channel }, { where: { id: roomId } });
+  return res.json(true)
 }
 
+// const makeChannel = async (req, res) => {
+//   const { roomId, channelName } = req.body
+//   console.log(roomId, channelName)
+// }
+
 export default {
-  joinRoom, roomImgUpload, createRoom, getRoom, exitRoom, joinChannel, makeChannel,
+  joinRoom, roomImgUpload, createRoom, getRoom, exitRoom, joinChannel, doubleJoin,
 };
diff --git a/server/routes/room.route.js b/server/routes/room.route.js
index 31f6c7404536db647d5f1d055f0f427883cb29ac..7390c0f8ff8a8e9ae5b5c1233d82e42a1825f198 100644
--- a/server/routes/room.route.js
+++ b/server/routes/room.route.js
@@ -7,6 +7,7 @@ router.route("/exitRoom/:id/:roomId").delete(roomCrtl.exitRoom);
 router.route("/create").post(roomCrtl.roomImgUpload, roomCrtl.createRoom);
 router.route("/join").put(roomCrtl.joinRoom);
 router.route("/joinChannel").post(roomCrtl.joinChannel);
-router.route("/makeChannel").post(roomCrtl.makeChannel);
+router.route("/doubleJoin").post(roomCrtl.doubleJoin);
+// router.route("/makeChannel").post(roomCrtl.makeChannel);
 
 export default router;
\ No newline at end of file