diff --git a/app/backend/src/groups/groups.controller.ts b/app/backend/src/groups/groups.controller.ts
index c634c52c..a4e31dd1 100644
--- a/app/backend/src/groups/groups.controller.ts
+++ b/app/backend/src/groups/groups.controller.ts
@@ -1,5 +1,5 @@
-import { Body, Controller, Delete, Get, Param, ParseIntPipe, Post, UseGuards } from '@nestjs/common';
-import { ApiBody, ApiOperation, ApiParam, ApiResponse, ApiTags } from '@nestjs/swagger';
+import { Body, Controller, Delete, Get, Param, ParseIntPipe, Post, Query, UseGuards } from '@nestjs/common';
+import { ApiBody, ApiOperation, ApiParam, ApiQuery, ApiResponse, ApiTags } from '@nestjs/swagger';
 import { GroupsService } from './groups.service';
 import { GetUser } from 'libs/decorators/get-user.decorator';
 import { AtGuard } from 'src/auth/guards/at.guard';
@@ -26,6 +26,20 @@ export class GroupsController {
     return this.groupsService.getAllGroups();
   }
 
+  @Get('/info')
+  @ApiOperation({
+    summary: '승인코드를 사용하여 그룹 정보 추출',
+    description: '승인 코드를 사용하여 특정 그룹 정보를 추출합니다.',
+  })
+  @ApiQuery({ name: 'access-code', description: '참가할 그룹의 승인 코드' })
+  @ApiResponse({ status: 201, description: 'Successfully retrieved group information' })
+  @ApiResponse({ status: 401, description: 'Unauthorized' })
+  @ApiResponse({ status: 403, description: 'Forbidden' })
+  @ApiResponse({ status: 404, description: 'Group not found for the provided access code' })
+  async getGroupByAccessCode(@Query('access_code') accessCode: string): Promise<Group & { membersCount: number }> {
+    return this.groupsService.getGroupByAccessCode(accessCode);
+  }
+
   @Get('/:id')
   @ApiOperation({
     summary: '특정 그룹 정보 조회',
diff --git a/app/backend/src/groups/groups.repository.ts b/app/backend/src/groups/groups.repository.ts
index fd367675..62e9ee64 100644
--- a/app/backend/src/groups/groups.repository.ts
+++ b/app/backend/src/groups/groups.repository.ts
@@ -28,6 +28,27 @@ export class GroupsRepository {
     return Promise.all(groupPromises);
   }
 
+  async getGroupByAccessCode(accessCode: string): Promise<Group & { membersCount: number }> {
+    const groupAccessCode = await this.prisma.groupAccessCode.findUnique({
+      where: {
+        accessCode: accessCode,
+      },
+      include: {
+        groupAccessCodes: true,
+      },
+    });
+
+    if (!groupAccessCode) {
+      throw new NotFoundException('Group not found for the provided access code');
+    }
+
+    const membersCount = await this.getGroupMembersCount(Number(groupAccessCode.groupId));
+    return {
+      ...groupAccessCode.groupAccessCodes,
+      membersCount,
+    };
+  }
+
   async getGroups(id: number): Promise<Group & { membersCount: number }> {
     const group = await this.prisma.group.findUnique({
       where: {
diff --git a/app/backend/src/groups/groups.service.ts b/app/backend/src/groups/groups.service.ts
index afad0032..b98fce7c 100644
--- a/app/backend/src/groups/groups.service.ts
+++ b/app/backend/src/groups/groups.service.ts
@@ -12,6 +12,10 @@ export class GroupsService {
     return this.groupsRepository.getAllGroups();
   }
 
+  async getGroupByAccessCode(accessCode: string): Promise<Group & { membersCount: number }> {
+    return this.groupsRepository.getGroupByAccessCode(accessCode);
+  }
+
   async getGroups(id: number): Promise<Group & { membersCount: number }> {
     return this.groupsRepository.getGroups(id);
   }