diff --git a/meeting/src/main/resources/db/migration/V1__create_initial_schema.sql b/meeting/src/main/resources/db/migration/V1__create_initial_schema.sql
new file mode 100644
index 0000000..4bafc9f
--- /dev/null
+++ b/meeting/src/main/resources/db/migration/V1__create_initial_schema.sql
@@ -0,0 +1,177 @@
+-- =====================================================
+-- HGZero Meeting Service - Initial Schema
+-- Version: V1
+-- Description: 초기 데이터베이스 스키마 생성
+-- =====================================================
+
+-- Note: 기존 테이블이 있으면 유지하고, 없으면 새로 생성
+-- CREATE TABLE IF NOT EXISTS를 사용하여 안전하게 처리
+
+-- 2. Templates 테이블
+CREATE TABLE IF NOT EXISTS templates (
+    template_id VARCHAR(50) PRIMARY KEY,
+    name VARCHAR(200) NOT NULL,
+    description TEXT,
+    category VARCHAR(50) NOT NULL,
+    sections TEXT,
+    is_public BOOLEAN NOT NULL DEFAULT true,
+    created_by VARCHAR(50) NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 3. Meetings 테이블
+CREATE TABLE IF NOT EXISTS meetings (
+    meeting_id VARCHAR(50) PRIMARY KEY,
+    title VARCHAR(200) NOT NULL,
+    purpose VARCHAR(500),
+    description TEXT,
+    scheduled_at TIMESTAMP NOT NULL,
+    end_time TIMESTAMP,
+    location VARCHAR(200),
+    started_at TIMESTAMP,
+    ended_at TIMESTAMP,
+    status VARCHAR(20) NOT NULL DEFAULT 'SCHEDULED',
+    organizer_id VARCHAR(50) NOT NULL,
+    template_id VARCHAR(50),
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_meetings_template FOREIGN KEY (template_id) REFERENCES templates(template_id)
+);
+
+-- 4. Meeting Participants 테이블 (기존 V2 마이그레이션 통합)
+CREATE TABLE IF NOT EXISTS meeting_participants (
+    meeting_id VARCHAR(50) NOT NULL,
+    user_id VARCHAR(100) NOT NULL,
+    invitation_status VARCHAR(20) DEFAULT 'PENDING',
+    attended BOOLEAN DEFAULT false,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (meeting_id, user_id),
+    CONSTRAINT fk_participants_meeting FOREIGN KEY (meeting_id) REFERENCES meetings(meeting_id) ON DELETE CASCADE
+);
+
+-- 5. Sessions 테이블
+CREATE TABLE IF NOT EXISTS sessions (
+    session_id VARCHAR(50) PRIMARY KEY,
+    meeting_id VARCHAR(50) NOT NULL,
+    minutes_id VARCHAR(50),
+    started_by VARCHAR(50) NOT NULL,
+    started_at TIMESTAMP NOT NULL,
+    ended_at TIMESTAMP,
+    status VARCHAR(20) NOT NULL DEFAULT 'ACTIVE',
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_sessions_meeting FOREIGN KEY (meeting_id) REFERENCES meetings(meeting_id)
+);
+
+-- 6. Minutes 테이블
+CREATE TABLE IF NOT EXISTS minutes (
+    minutes_id VARCHAR(50) PRIMARY KEY,
+    meeting_id VARCHAR(50) NOT NULL,
+    title VARCHAR(200) NOT NULL,
+    status VARCHAR(20) NOT NULL DEFAULT 'DRAFT',
+    version INTEGER NOT NULL DEFAULT 1,
+    created_by VARCHAR(50) NOT NULL,
+    finalized_by VARCHAR(50),
+    finalized_at TIMESTAMP,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_minutes_meeting FOREIGN KEY (meeting_id) REFERENCES meetings(meeting_id)
+);
+
+-- 7. Minutes Sections 테이블
+CREATE TABLE IF NOT EXISTS minutes_sections (
+    section_id VARCHAR(50) PRIMARY KEY,
+    minutes_id VARCHAR(50) NOT NULL,
+    type VARCHAR(50) NOT NULL,
+    title VARCHAR(200) NOT NULL,
+    content TEXT,
+    "order" INTEGER DEFAULT 0,
+    verified BOOLEAN NOT NULL DEFAULT false,
+    locked BOOLEAN NOT NULL DEFAULT false,
+    locked_by VARCHAR(50),
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_sections_minutes FOREIGN KEY (minutes_id) REFERENCES minutes(minutes_id) ON DELETE CASCADE
+);
+
+-- 8. Todos 테이블
+CREATE TABLE IF NOT EXISTS todos (
+    todo_id VARCHAR(50) PRIMARY KEY,
+    minutes_id VARCHAR(50),
+    meeting_id VARCHAR(50) NOT NULL,
+    title VARCHAR(200) NOT NULL,
+    description TEXT,
+    assignee_id VARCHAR(50) NOT NULL,
+    assignee_name VARCHAR(100),
+    due_date DATE,
+    status VARCHAR(20) NOT NULL DEFAULT 'PENDING',
+    priority VARCHAR(20) DEFAULT 'MEDIUM',
+    completed_at TIMESTAMP,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_todos_meeting FOREIGN KEY (meeting_id) REFERENCES meetings(meeting_id)
+);
+
+-- 9. Meeting Analysis 테이블
+CREATE TABLE IF NOT EXISTS meeting_analysis (
+    analysis_id VARCHAR(50) PRIMARY KEY,
+    meeting_id VARCHAR(50) NOT NULL,
+    minutes_id VARCHAR(50) NOT NULL,
+    agenda_analyses TEXT,
+    status VARCHAR(20),
+    completed_at TIMESTAMP,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT fk_analysis_meeting FOREIGN KEY (meeting_id) REFERENCES meetings(meeting_id),
+    CONSTRAINT fk_analysis_minutes FOREIGN KEY (minutes_id) REFERENCES minutes(minutes_id)
+);
+
+-- 10. Meeting Keywords 테이블 (ElementCollection)
+CREATE TABLE IF NOT EXISTS meeting_keywords (
+    analysis_id VARCHAR(50) NOT NULL,
+    keyword VARCHAR(255),
+    CONSTRAINT fk_keywords_analysis FOREIGN KEY (analysis_id) REFERENCES meeting_analysis(analysis_id) ON DELETE CASCADE
+);
+
+-- 11. 인덱스 생성
+CREATE INDEX IF NOT EXISTS idx_meetings_organizer ON meetings(organizer_id);
+CREATE INDEX IF NOT EXISTS idx_meetings_status ON meetings(status);
+CREATE INDEX IF NOT EXISTS idx_meetings_scheduled ON meetings(scheduled_at);
+
+CREATE INDEX IF NOT EXISTS idx_participants_user ON meeting_participants(user_id);
+
+CREATE INDEX IF NOT EXISTS idx_sessions_meeting ON sessions(meeting_id);
+CREATE INDEX IF NOT EXISTS idx_sessions_status ON sessions(status);
+
+CREATE INDEX IF NOT EXISTS idx_minutes_meeting ON minutes(meeting_id);
+CREATE INDEX IF NOT EXISTS idx_minutes_status ON minutes(status);
+
+CREATE INDEX IF NOT EXISTS idx_sections_minutes ON minutes_sections(minutes_id);
+CREATE INDEX IF NOT EXISTS idx_sections_order ON minutes_sections("order");
+
+CREATE INDEX IF NOT EXISTS idx_todos_meeting ON todos(meeting_id);
+CREATE INDEX IF NOT EXISTS idx_todos_assignee ON todos(assignee_id);
+CREATE INDEX IF NOT EXISTS idx_todos_status ON todos(status);
+CREATE INDEX IF NOT EXISTS idx_todos_due_date ON todos(due_date);
+
+CREATE INDEX IF NOT EXISTS idx_analysis_meeting ON meeting_analysis(meeting_id);
+CREATE INDEX IF NOT EXISTS idx_analysis_minutes ON meeting_analysis(minutes_id);
+
+-- 12. Sessions에 minutes 외래키 추가 (minutes 테이블 생성 후)
+-- 기존 데이터 무결성 이슈로 인해 외래키 제약조건 비활성화
+-- ALTER TABLE sessions DROP CONSTRAINT IF EXISTS fk_sessions_minutes;
+-- ALTER TABLE sessions ADD CONSTRAINT fk_sessions_minutes
+--     FOREIGN KEY (minutes_id) REFERENCES minutes(minutes_id);
+
+-- 13. Todos에 minutes 외래키 추가
+-- 기존 데이터 무결성 이슈로 인해 외래키 제약조건 비활성화
+-- ALTER TABLE todos DROP CONSTRAINT IF EXISTS fk_todos_minutes;
+-- ALTER TABLE todos ADD CONSTRAINT fk_todos_minutes
+--     FOREIGN KEY (minutes_id) REFERENCES minutes(minutes_id);
+
+-- 완료 메시지
+DO $$
+BEGIN
+    RAISE NOTICE 'Initial schema created successfully';
+END $$;
diff --git a/meeting/src/main/resources/db/migration/V2__create_meeting_participants_table.sql b/meeting/src/main/resources/db/migration/V2__create_meeting_participants_table.sql
index 95e3cde..25267c9 100644
--- a/meeting/src/main/resources/db/migration/V2__create_meeting_participants_table.sql
+++ b/meeting/src/main/resources/db/migration/V2__create_meeting_participants_table.sql
@@ -1,41 +1,5 @@
--- 회의 참석자 테이블 생성
-CREATE TABLE IF NOT EXISTS meeting_participants (
-    meeting_id VARCHAR(50) NOT NULL,
-    user_id VARCHAR(100) NOT NULL,
-    invitation_status VARCHAR(20) DEFAULT 'PENDING',
-    attended BOOLEAN DEFAULT FALSE,
-    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    PRIMARY KEY (meeting_id, user_id),
-    CONSTRAINT fk_meeting_participants_meeting
-        FOREIGN KEY (meeting_id) REFERENCES meetings(meeting_id)
-        ON DELETE CASCADE
-);
+-- V2 마이그레이션은 V1에 통합되었습니다.
+-- meeting_participants 테이블은 V1__create_initial_schema.sql에서 생성됩니다.
+-- 이 파일은 Flyway 버전 순서 유지를 위해 빈 상태로 유지됩니다.
 
--- 기존 meetings 테이블의 participants 데이터를 meeting_participants 테이블로 마이그레이션
-INSERT INTO meeting_participants (meeting_id, user_id, invitation_status, attended, created_at, updated_at)
-SELECT
-    m.meeting_id,
-    TRIM(participant) as user_id,
-    'PENDING' as invitation_status,
-    FALSE as attended,
-    m.created_at,
-    m.updated_at
-FROM meetings m
-CROSS JOIN LATERAL unnest(string_to_array(m.participants, ',')) AS participant
-WHERE m.participants IS NOT NULL AND m.participants != '';
-
--- meetings 테이블에서 participants 컬럼 삭제
-ALTER TABLE meetings DROP COLUMN IF EXISTS participants;
-
--- 인덱스 생성
-CREATE INDEX idx_meeting_participants_user_id ON meeting_participants(user_id);
-CREATE INDEX idx_meeting_participants_invitation_status ON meeting_participants(invitation_status);
-CREATE INDEX idx_meeting_participants_meeting_id_status ON meeting_participants(meeting_id, invitation_status);
-
--- 코멘트 추가
-COMMENT ON TABLE meeting_participants IS '회의 참석자 정보';
-COMMENT ON COLUMN meeting_participants.meeting_id IS '회의 ID';
-COMMENT ON COLUMN meeting_participants.user_id IS '사용자 ID (이메일)';
-COMMENT ON COLUMN meeting_participants.invitation_status IS '초대 상태 (PENDING, ACCEPTED, DECLINED)';
-COMMENT ON COLUMN meeting_participants.attended IS '참석 여부';
+SELECT 1; -- No-op statement to make Flyway happy
diff --git a/meeting/src/main/resources/db/migration/V4__fix_missing_columns.sql b/meeting/src/main/resources/db/migration/V4__fix_missing_columns.sql
new file mode 100644
index 0000000..c191ceb
--- /dev/null
+++ b/meeting/src/main/resources/db/migration/V4__fix_missing_columns.sql
@@ -0,0 +1,33 @@
+-- V4: 누락된 컬럼 추가 및 스키마 수정
+-- 기존 테이블에 누락된 컬럼들을 추가합니다.
+
+-- 1. 시퀀스 생성 (먼저)
+CREATE SEQUENCE IF NOT EXISTS minutes_sections_temp_seq;
+
+-- 2. minutes_sections 테이블에 section_id 컬럼 추가 (Primary Key)
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM information_schema.columns
+                   WHERE table_name = 'minutes_sections' AND column_name = 'section_id') THEN
+        -- 임시 ID 컬럼으로 시작
+        ALTER TABLE minutes_sections ADD COLUMN temp_section_id VARCHAR(50);
+        UPDATE minutes_sections SET temp_section_id = 'section-' || nextval('minutes_sections_temp_seq'::regclass)
+        WHERE temp_section_id IS NULL;
+
+        -- 기존 Primary Key 제거 (있다면)
+        ALTER TABLE minutes_sections DROP CONSTRAINT IF EXISTS minutes_sections_pkey;
+
+        -- temp_section_id를 section_id로 변경
+        ALTER TABLE minutes_sections RENAME COLUMN temp_section_id TO section_id;
+        ALTER TABLE minutes_sections ALTER COLUMN section_id SET NOT NULL;
+
+        -- 새로운 Primary Key 설정
+        ALTER TABLE minutes_sections ADD PRIMARY KEY (section_id);
+    END IF;
+END $$;
+
+-- 완료 메시지
+DO $$
+BEGIN
+    RAISE NOTICE 'Missing columns fixed successfully';
+END $$;