diff --git a/backend-node/src/services/componentStandardService.ts b/backend-node/src/services/componentStandardService.ts
index 3ac00742..496a4ae7 100644
--- a/backend-node/src/services/componentStandardService.ts
+++ b/backend-node/src/services/componentStandardService.ts
@@ -1,6 +1,4 @@
-import { PrismaClient } from "@prisma/client";
-
-const prisma = new PrismaClient();
+import { query, queryOne, transaction } from "../database/db";
 
 export interface ComponentStandardData {
   component_code: string;
@@ -49,49 +47,78 @@ class ComponentStandardService {
       offset = 0,
     } = params;
 
-    const where: any = {};
+    const whereConditions: string[] = [];
+    const values: any[] = [];
+    let paramIndex = 1;
 
     // 활성화 상태 필터
     if (active) {
-      where.is_active = active;
+      whereConditions.push(`is_active = $${paramIndex++}`);
+      values.push(active);
     }
 
     // 카테고리 필터
     if (category && category !== "all") {
-      where.category = category;
+      whereConditions.push(`category = $${paramIndex++}`);
+      values.push(category);
     }
 
     // 공개 여부 필터
     if (is_public) {
-      where.is_public = is_public;
+      whereConditions.push(`is_public = $${paramIndex++}`);
+      values.push(is_public);
     }
 
     // 회사별 필터 (공개 컴포넌트 + 해당 회사 컴포넌트)
     if (company_code) {
-      where.OR = [{ is_public: "Y" }, { company_code }];
+      whereConditions.push(
+        `(is_public = 'Y' OR company_code = $${paramIndex++})`
+      );
+      values.push(company_code);
     }
 
     // 검색 조건
     if (search) {
-      where.OR = [
-        ...(where.OR || []),
-        { component_name: { contains: search, mode: "insensitive" } },
-        { component_name_eng: { contains: search, mode: "insensitive" } },
-        { description: { contains: search, mode: "insensitive" } },
-      ];
+      whereConditions.push(
+        `(component_name ILIKE $${paramIndex} OR component_name_eng ILIKE $${paramIndex} OR description ILIKE $${paramIndex})`
+      );
+      values.push(`%${search}%`);
+      paramIndex++;
     }
 
-    const orderBy: any = {};
-    orderBy[sort] = order;
+    const whereClause =
+      whereConditions.length > 0
+        ? `WHERE ${whereConditions.join(" AND ")}`
+        : "";
 
-    const components = await prisma.component_standards.findMany({
-      where,
-      orderBy,
-      take: limit,
-      skip: offset,
-    });
+    // 정렬 컬럼 검증 (SQL 인젝션 방지)
+    const validSortColumns = [
+      "sort_order",
+      "component_name",
+      "category",
+      "created_date",
+      "updated_date",
+    ];
+    const sortColumn = validSortColumns.includes(sort) ? sort : "sort_order";
+    const sortOrder = order === "desc" ? "DESC" : "ASC";
 
-    const total = await prisma.component_standards.count({ where });
+    // 컴포넌트 조회
+    const components = await query<any>(
+      `SELECT * FROM component_standards
+       ${whereClause}
+       ORDER BY ${sortColumn} ${sortOrder}
+       ${limit ? `LIMIT $${paramIndex++}` : ""}
+       ${limit ? `OFFSET $${paramIndex++}` : ""}`,
+      limit ? [...values, limit, offset] : values
+    );
+
+    // 전체 개수 조회
+    const countResult = await queryOne<{ count: string }>(
+      `SELECT COUNT(*) as count FROM component_standards ${whereClause}`,
+      values
+    );
+
+    const total = parseInt(countResult?.count || "0");
 
     return {
       components,
@@ -105,9 +132,10 @@ class ComponentStandardService {
    * 컴포넌트 상세 조회
    */
   async getComponent(component_code: string) {
-    const component = await prisma.component_standards.findUnique({
-      where: { component_code },
-    });
+    const component = await queryOne<any>(
+      `SELECT * FROM component_standards WHERE component_code = $1`,
+      [component_code]
+    );
 
     if (!component) {
       throw new Error(`컴포넌트를 찾을 수 없습니다: ${component_code}`);
@@ -121,9 +149,10 @@ class ComponentStandardService {
    */
   async createComponent(data: ComponentStandardData) {
     // 중복 코드 확인
-    const existing = await prisma.component_standards.findUnique({
-      where: { component_code: data.component_code },
-    });
+    const existing = await queryOne<any>(
+      `SELECT * FROM component_standards WHERE component_code = $1`,
+      [data.component_code]
+    );
 
     if (existing) {
       throw new Error(
@@ -138,13 +167,31 @@ class ComponentStandardService {
       delete (createData as any).active;
     }
 
-    const component = await prisma.component_standards.create({
-      data: {
-        ...createData,
-        created_date: new Date(),
-        updated_date: new Date(),
-      },
-    });
+    const component = await queryOne<any>(
+      `INSERT INTO component_standards 
+       (component_code, component_name, component_name_eng, description, category, 
+        icon_name, default_size, component_config, preview_image, sort_order, 
+        is_active, is_public, company_code, created_by, updated_by, created_date, updated_date)
+       VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, NOW(), NOW())
+       RETURNING *`,
+      [
+        createData.component_code,
+        createData.component_name,
+        createData.component_name_eng || null,
+        createData.description || null,
+        createData.category,
+        createData.icon_name || null,
+        createData.default_size || null,
+        createData.component_config,
+        createData.preview_image || null,
+        createData.sort_order || 0,
+        createData.is_active || "Y",
+        createData.is_public || "N",
+        createData.company_code,
+        createData.created_by || null,
+        createData.updated_by || null,
+      ]
+    );
 
     return component;
   }
@@ -165,13 +212,41 @@ class ComponentStandardService {
       delete (updateData as any).active;
     }
 
-    const component = await prisma.component_standards.update({
-      where: { component_code },
-      data: {
-        ...updateData,
-        updated_date: new Date(),
-      },
-    });
+    // 동적 UPDATE 쿼리 생성
+    const updateFields: string[] = ["updated_date = NOW()"];
+    const values: any[] = [];
+    let paramIndex = 1;
+
+    const fieldMapping: { [key: string]: string } = {
+      component_name: "component_name",
+      component_name_eng: "component_name_eng",
+      description: "description",
+      category: "category",
+      icon_name: "icon_name",
+      default_size: "default_size",
+      component_config: "component_config",
+      preview_image: "preview_image",
+      sort_order: "sort_order",
+      is_active: "is_active",
+      is_public: "is_public",
+      company_code: "company_code",
+      updated_by: "updated_by",
+    };
+
+    for (const [key, dbField] of Object.entries(fieldMapping)) {
+      if (key in updateData) {
+        updateFields.push(`${dbField} = $${paramIndex++}`);
+        values.push((updateData as any)[key]);
+      }
+    }
+
+    const component = await queryOne<any>(
+      `UPDATE component_standards 
+       SET ${updateFields.join(", ")}
+       WHERE component_code = $${paramIndex}
+       RETURNING *`,
+      [...values, component_code]
+    );
 
     return component;
   }
@@ -182,9 +257,10 @@ class ComponentStandardService {
   async deleteComponent(component_code: string) {
     const existing = await this.getComponent(component_code);
 
-    await prisma.component_standards.delete({
-      where: { component_code },
-    });
+    await query(
+      `DELETE FROM component_standards WHERE component_code = $1`,
+      [component_code]
+    );
 
     return { message: `컴포넌트가 삭제되었습니다: ${component_code}` };
   }
@@ -195,14 +271,16 @@ class ComponentStandardService {
   async updateSortOrder(
     updates: Array<{ component_code: string; sort_order: number }>
   ) {
-    const transactions = updates.map(({ component_code, sort_order }) =>
-      prisma.component_standards.update({
-        where: { component_code },
-        data: { sort_order, updated_date: new Date() },
-      })
-    );
-
-    await prisma.$transaction(transactions);
+    await transaction(async (client) => {
+      for (const { component_code, sort_order } of updates) {
+        await client.query(
+          `UPDATE component_standards 
+           SET sort_order = $1, updated_date = NOW()
+           WHERE component_code = $2`,
+          [sort_order, component_code]
+        );
+      }
+    });
 
     return { message: "정렬 순서가 업데이트되었습니다." };
   }
@@ -218,33 +296,38 @@ class ComponentStandardService {
     const source = await this.getComponent(source_code);
 
     // 새 코드 중복 확인
-    const existing = await prisma.component_standards.findUnique({
-      where: { component_code: new_code },
-    });
+    const existing = await queryOne<any>(
+      `SELECT * FROM component_standards WHERE component_code = $1`,
+      [new_code]
+    );
 
     if (existing) {
       throw new Error(`이미 존재하는 컴포넌트 코드입니다: ${new_code}`);
     }
 
-    const component = await prisma.component_standards.create({
-      data: {
-        component_code: new_code,
-        component_name: new_name,
-        component_name_eng: source?.component_name_eng,
-        description: source?.description,
-        category: source?.category,
-        icon_name: source?.icon_name,
-        default_size: source?.default_size as any,
-        component_config: source?.component_config as any,
-        preview_image: source?.preview_image,
-        sort_order: source?.sort_order,
-        is_active: source?.is_active,
-        is_public: source?.is_public,
-        company_code: source?.company_code || "DEFAULT",
-        created_date: new Date(),
-        updated_date: new Date(),
-      },
-    });
+    const component = await queryOne<any>(
+      `INSERT INTO component_standards 
+       (component_code, component_name, component_name_eng, description, category, 
+        icon_name, default_size, component_config, preview_image, sort_order, 
+        is_active, is_public, company_code, created_date, updated_date)
+       VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, NOW(), NOW())
+       RETURNING *`,
+      [
+        new_code,
+        new_name,
+        source?.component_name_eng,
+        source?.description,
+        source?.category,
+        source?.icon_name,
+        source?.default_size,
+        source?.component_config,
+        source?.preview_image,
+        source?.sort_order,
+        source?.is_active,
+        source?.is_public,
+        source?.company_code || "DEFAULT",
+      ]
+    );
 
     return component;
   }
@@ -253,19 +336,20 @@ class ComponentStandardService {
    * 카테고리 목록 조회
    */
   async getCategories(company_code?: string) {
-    const where: any = {
-      is_active: "Y",
-    };
+    const whereConditions: string[] = ["is_active = 'Y'"];
+    const values: any[] = [];
 
     if (company_code) {
-      where.OR = [{ is_public: "Y" }, { company_code }];
+      whereConditions.push(`(is_public = 'Y' OR company_code = $1)`);
+      values.push(company_code);
     }
 
-    const categories = await prisma.component_standards.findMany({
-      where,
-      select: { category: true },
-      distinct: ["category"],
-    });
+    const whereClause = `WHERE ${whereConditions.join(" AND ")}`;
+
+    const categories = await query<{ category: string }>(
+      `SELECT DISTINCT category FROM component_standards ${whereClause} ORDER BY category`,
+      values
+    );
 
     return categories
       .map((item) => item.category)
@@ -276,36 +360,48 @@ class ComponentStandardService {
    * 컴포넌트 통계
    */
   async getStatistics(company_code?: string) {
-    const where: any = {
-      is_active: "Y",
-    };
+    const whereConditions: string[] = ["is_active = 'Y'"];
+    const values: any[] = [];
 
     if (company_code) {
-      where.OR = [{ is_public: "Y" }, { company_code }];
+      whereConditions.push(`(is_public = 'Y' OR company_code = $1)`);
+      values.push(company_code);
     }
 
-    const total = await prisma.component_standards.count({ where });
+    const whereClause = `WHERE ${whereConditions.join(" AND ")}`;
 
-    const byCategory = await prisma.component_standards.groupBy({
-      by: ["category"],
-      where,
-      _count: { category: true },
-    });
+    // 전체 개수
+    const totalResult = await queryOne<{ count: string }>(
+      `SELECT COUNT(*) as count FROM component_standards ${whereClause}`,
+      values
+    );
+    const total = parseInt(totalResult?.count || "0");
 
-    const byStatus = await prisma.component_standards.groupBy({
-      by: ["is_active"],
-      _count: { is_active: true },
-    });
+    // 카테고리별 집계
+    const byCategory = await query<{ category: string; count: string }>(
+      `SELECT category, COUNT(*) as count 
+       FROM component_standards 
+       ${whereClause}
+       GROUP BY category`,
+      values
+    );
+
+    // 상태별 집계
+    const byStatus = await query<{ is_active: string; count: string }>(
+      `SELECT is_active, COUNT(*) as count 
+       FROM component_standards 
+       GROUP BY is_active`
+    );
 
     return {
       total,
       byCategory: byCategory.map((item) => ({
         category: item.category,
-        count: item._count.category,
+        count: parseInt(item.count),
       })),
       byStatus: byStatus.map((item) => ({
         status: item.is_active,
-        count: item._count.is_active,
+        count: parseInt(item.count),
       })),
     };
   }
@@ -317,16 +413,21 @@ class ComponentStandardService {
     component_code: string,
     company_code?: string
   ): Promise<boolean> {
-    const whereClause: any = { component_code };
+    const whereConditions: string[] = ["component_code = $1"];
+    const values: any[] = [component_code];
 
     // 회사 코드가 있고 "*"가 아닌 경우에만 조건 추가
     if (company_code && company_code !== "*") {
-      whereClause.company_code = company_code;
+      whereConditions.push("company_code = $2");
+      values.push(company_code);
     }
 
-    const existingComponent = await prisma.component_standards.findFirst({
-      where: whereClause,
-    });
+    const whereClause = `WHERE ${whereConditions.join(" AND ")}`;
+
+    const existingComponent = await queryOne<any>(
+      `SELECT * FROM component_standards ${whereClause} LIMIT 1`,
+      values
+    );
 
     return !!existingComponent;
   }