diff --git a/src/api/games/patchGameParticipate.ts b/src/api/games/patchGameParticipate.ts
index b315c7b4..48b4edb2 100644
--- a/src/api/games/patchGameParticipate.ts
+++ b/src/api/games/patchGameParticipate.ts
@@ -3,7 +3,7 @@ import { axiosInstance } from '@api/axiosInstance';
 import { PatchGameParticipateApplyRequest } from '@type/api/games';
 import { Game, Member } from '@type/models';
 
-export const patchMannerScoreReview = async ({
+export const patchGameParticipate = async ({
   payload,
   gameId,
   memberId,
diff --git a/src/hooks/mutations/useGameParticipateCreateMutation.ts b/src/hooks/mutations/useGameParticipateCreateMutation.ts
new file mode 100644
index 00000000..0dfa78f1
--- /dev/null
+++ b/src/hooks/mutations/useGameParticipateCreateMutation.ts
@@ -0,0 +1,9 @@
+import { useMutation } from '@tanstack/react-query';
+
+import { postGameParticipate } from '@api/games/postGameParticipate';
+
+export const useGameParticipateCreateMutation = () => {
+  return useMutation({
+    mutationFn: postGameParticipate,
+  });
+};
diff --git a/src/mocks/handlers/game.ts b/src/mocks/handlers/game.ts
index 25b59069..5225e051 100644
--- a/src/mocks/handlers/game.ts
+++ b/src/mocks/handlers/game.ts
@@ -4,6 +4,7 @@ import { CommonErrorResponse } from '@type/api/error';
 import {
   GetGameDetailResponse,
   GetGameMembersResponse,
+  PostGameParticipateRequest,
   PostGameRequest,
   PostGameResponse,
 } from '@type/api/games';
@@ -65,6 +66,34 @@ const mockGetGames = http.get('/api/games', ({ request }) => {
   return HttpResponse.json(games.slice(startIndex, startIndex + size));
 });
 
+const mockPostGameParticipate = http.post<
+  { gameId: string },
+  { data: PostGameParticipateRequest }
+>('/api/games/:gameId/members', async ({ params, request }) => {
+  const gameId = Number(params.gameId);
+  const {
+    data: { memberId },
+  } = await request.json();
+
+  const game = games.find((game) => game.id === gameId);
+  if (!game) {
+    return;
+  }
+
+  game.members.push({
+    id: memberId,
+    email: 'james123@pickple.kr',
+    nickname: 'james123',
+    introduction: '안녕하십니까. 제임스입니다. 아이고~ 사장님~~',
+    profileImageUrl: 'https://s3.amazonaws.com/pickple/james123.jpg',
+    mannerScore: 21,
+    mannerScoreCount: 30,
+    addressDepth1: '서울시',
+    addressDepth2: '강남구',
+    positions: ['C', 'PF'],
+  });
+});
+
 const mockGetGameMembers = http.get<
   { gameId: string },
   DefaultBodyType,
@@ -106,4 +135,10 @@ const mockGetGameDetail = http.get<
   return HttpResponse.json(game);
 });
 
-export const gameHandlers = [mockPostGame, mockGetGames, mockGetGameDetail, mockGetGameMembers];
+export const gameHandlers = [
+  mockPostGame,
+  mockGetGames,
+  mockGetGameDetail,
+  mockGetGameMembers,
+  mockPostGameParticipate,
+];