diff --git a/src/app/(main)/events/create/steps/ApprovalStep.tsx b/src/app/(main)/events/create/steps/ApprovalStep.tsx
index 465029e..5f5b536 100644
--- a/src/app/(main)/events/create/steps/ApprovalStep.tsx
+++ b/src/app/(main)/events/create/steps/ApprovalStep.tsx
@@ -20,6 +20,7 @@ import {
 import { ArrowBack, CheckCircle, Edit, RocketLaunch, Save, People, AttachMoney, TrendingUp } from '@mui/icons-material';
 import { EventData } from '../page';
 import { cardStyles, colors, responsiveText } from '@/shared/lib/button-styles';
+import { eventApi } from '@/entities/event/api/eventApi';
 
 interface ApprovalStepProps {
   eventData: EventData;
@@ -33,16 +34,98 @@ export default function ApprovalStep({ eventData, onApprove, onBack }: ApprovalS
   const [successDialogOpen, setSuccessDialogOpen] = useState(false);
   const [isDeploying, setIsDeploying] = useState(false);
 
-  const handleApprove = () => {
+  const handleApprove = async () => {
     if (!agreeTerms) return;
 
     setIsDeploying(true);
 
-    // 배포 시뮬레이션
-    setTimeout(() => {
+    try {
+      // 1. 이벤트 생성 API 호출
+      console.log('📞 Creating event with objective:', eventData.objective);
+
+      // objective 매핑 (Frontend → Backend)
+      const objectiveMap: Record<string, string> = {
+        'new_customer': 'CUSTOMER_ACQUISITION',
+        'revisit': 'Customer Retention',
+        'sales': 'Sales Promotion',
+        'awareness': 'awareness',
+      };
+
+      const backendObjective = objectiveMap[eventData.objective || 'new_customer'] || 'CUSTOMER_ACQUISITION';
+
+      const createResponse = await eventApi.createEvent({
+        objective: backendObjective,
+      });
+
+      console.log('✅ Event created:', createResponse);
+
+      if (createResponse.success && createResponse.data) {
+        const eventId = createResponse.data.eventId;
+        console.log('🎯 Event ID:', eventId);
+
+        // 2. 이벤트 상세 정보 업데이트
+        console.log('📞 Updating event details:', eventId);
+
+        // 이벤트명 가져오기 (contentEdit.title 또는 recommendation.title)
+        const eventName = eventData.contentEdit?.title || eventData.recommendation?.title || '이벤트';
+
+        // 날짜 설정 (오늘부터 30일간)
+        const today = new Date();
+        const endDate = new Date(today);
+        endDate.setDate(endDate.getDate() + 30);
+
+        const startDateStr = today.toISOString().split('T')[0]; // YYYY-MM-DD
+        const endDateStr = endDate.toISOString().split('T')[0];
+
+        await eventApi.updateEvent(eventId, {
+          eventName: eventName,
+          description: eventData.contentEdit?.guide || eventData.recommendation?.participationMethod,
+          startDate: startDateStr,
+          endDate: endDateStr,
+        });
+        console.log('✅ Event details updated');
+
+        // 3. 배포 채널 선택
+        if (eventData.channels && eventData.channels.length > 0) {
+          console.log('📞 Selecting channels:', eventData.channels);
+
+          // 채널명 매핑 (Frontend → Backend)
+          const channelMap: Record<string, string> = {
+            'uriTV': 'WEBSITE',
+            'ringoBiz': 'EMAIL',
+            'genieTV': 'KAKAO',
+            'sns': 'INSTAGRAM',
+          };
+
+          const backendChannels = eventData.channels.map(ch => channelMap[ch] || ch.toUpperCase());
+
+          await eventApi.selectChannels(eventId, {
+            channels: backendChannels,
+          });
+          console.log('✅ Channels selected');
+        }
+
+        // 4. TODO: 이미지 선택
+        // 현재 frontend에서 selectedImageId를 추적하지 않음
+        // 향후 contentPreview 단계에서 선택된 이미지 ID를 eventData에 저장 필요
+        console.log('⚠️ Image selection skipped - imageId not tracked in frontend');
+
+        // 5. 이벤트 배포 API 호출
+        console.log('📞 Publishing event:', eventId);
+        const publishResponse = await eventApi.publishEvent(eventId);
+        console.log('✅ Event published:', publishResponse);
+
+        // 성공 다이얼로그 표시
+        setIsDeploying(false);
+        setSuccessDialogOpen(true);
+      } else {
+        throw new Error('Event creation failed: No event ID returned');
+      }
+    } catch (error) {
+      console.error('❌ Event deployment failed:', error);
       setIsDeploying(false);
-      setSuccessDialogOpen(true);
-    }, 2000);
+      alert('이벤트 배포에 실패했습니다. 다시 시도해 주세요.');
+    }
   };
 
   const handleSaveDraft = () => {
diff --git a/src/entities/event/api/eventApi.ts b/src/entities/event/api/eventApi.ts
index 929eefe..6820d7a 100644
--- a/src/entities/event/api/eventApi.ts
+++ b/src/entities/event/api/eventApi.ts
@@ -10,6 +10,9 @@ import type {
   JobAcceptedResponse,
   ImageGenerationRequest,
   ImageGenerationResponse,
+  UpdateEventRequest,
+  SelectChannelsRequest,
+  SelectImageRequest,
 } from '../model/types';
 
 /**
@@ -193,6 +196,52 @@ export const eventApi = {
     );
     return response.data;
   },
+
+  /**
+   * 이벤트 수정
+   */
+  updateEvent: async (
+    eventId: string,
+    data: UpdateEventRequest
+  ): Promise<ApiResponse<EventDetail>> => {
+    console.log('📞 eventApi.updateEvent 호출', eventId, data);
+    const response = await eventApiClient.put<ApiResponse<EventDetail>>(
+      `${EVENT_API_BASE}/${eventId}`,
+      data
+    );
+    return response.data;
+  },
+
+  /**
+   * 배포 채널 선택
+   */
+  selectChannels: async (
+    eventId: string,
+    data: SelectChannelsRequest
+  ): Promise<ApiResponse<void>> => {
+    console.log('📞 eventApi.selectChannels 호출', eventId, data);
+    const response = await eventApiClient.put<ApiResponse<void>>(
+      `${EVENT_API_BASE}/${eventId}/channels`,
+      data
+    );
+    return response.data;
+  },
+
+  /**
+   * 이미지 선택
+   */
+  selectImage: async (
+    eventId: string,
+    imageId: string,
+    data: SelectImageRequest
+  ): Promise<ApiResponse<void>> => {
+    console.log('📞 eventApi.selectImage 호출', eventId, imageId, data);
+    const response = await eventApiClient.put<ApiResponse<void>>(
+      `${EVENT_API_BASE}/${eventId}/images/${imageId}/select`,
+      data
+    );
+    return response.data;
+  },
 };
 
 export default eventApi;
diff --git a/src/entities/event/model/types.ts b/src/entities/event/model/types.ts
index b3de860..c9d9b37 100644
--- a/src/entities/event/model/types.ts
+++ b/src/entities/event/model/types.ts
@@ -171,3 +171,28 @@ export interface ImageGenerationResponse {
   eventId: string;
   status: string;
 }
+
+/**
+ * 이벤트 수정 요청
+ */
+export interface UpdateEventRequest {
+  eventName?: string;
+  description?: string;
+  startDate?: string;
+  endDate?: string;
+  discountRate?: number;
+}
+
+/**
+ * 배포 채널 선택 요청
+ */
+export interface SelectChannelsRequest {
+  channels: string[];
+}
+
+/**
+ * 이미지 선택 요청
+ */
+export interface SelectImageRequest {
+  selectedImageId: string;
+}