diff --git a/.env.example b/.env.example
index a92cae5..e0b2300 100644
--- a/.env.example
+++ b/.env.example
@@ -10,4 +10,7 @@ REDIS_ADDR=localhost:6379
 REDIS_PASSWORD=
 
 JWT_SECRET=your-secret-key-here
-JWT_EXPIRY_HOURS=24
\ No newline at end of file
+JWT_EXPIRY_HOURS=24
+
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=admin1234
\ No newline at end of file
diff --git a/internal/auth/service.go b/internal/auth/service.go
index 02d77fd..dc91290 100644
--- a/internal/auth/service.go
+++ b/internal/auth/service.go
@@ -64,3 +64,18 @@ func (s *Service) Logout(userID uint) {
 	key := fmt.Sprintf("session:%d", userID)
 	s.rdb.Del(context.Background(), key)
 }
+
+func (s *Service) EnsureAdmin(username, password string) error {
+	if _, err := s.repo.FindByUsername(username); err == nil {
+		return nil // 이미 존재하면 스킵
+	}
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return err
+	}
+	return s.repo.Create(&User{
+		Username:     username,
+		PasswordHash: string(hash),
+		Role:         RoleAdmin,
+	})
+}
diff --git a/main.go b/main.go
index 7210411..b82efb2 100644
--- a/main.go
+++ b/main.go
@@ -35,6 +35,13 @@ func main() {
 	authSvc := auth.NewService(authRepo, database.RDB)
 	authHandler := auth.NewHandler(authSvc)
 
+	// 초기 admin 계정 생성
+	if err := authSvc.EnsureAdmin(config.C.AdminUsername, config.C.AdminPassword); err != nil {
+		log.Printf("admin 계정 생성 실패: %v", err)
+	} else {
+		log.Printf("admin 계정 확인 완료: %s", config.C.AdminUsername)
+	}
+
 	annRepo := announcement.NewRepository(database.DB)
 	annSvc := announcement.NewService(annRepo)
 	annHandler := announcement.NewHandler(annSvc)
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 7cdb25d..0afb8eb 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -18,6 +18,8 @@ type Config struct {
 	RedisPassword  string
 	JWTSecret      string
 	JWTExpiryHours int
+	AdminUsername  string
+	AdminPassword  string
 }
 
 var C Config
@@ -37,6 +39,8 @@ func Load() {
 		RedisPassword:  getEnv("REDIS_PASSWORD", ""),
 		JWTSecret:      getEnv("JWT_SECRET", "secret"),
 		JWTExpiryHours: hours,
+		AdminUsername:  getEnv("ADMIN_USERNAME", "admin"),
+		AdminPassword:  getEnv("ADMIN_PASSWORD", "admin1234"),
 	}
 }