diff --git a/backend/src/routes/tiles.ts b/backend/src/routes/tiles.ts
index 0494823..a0ba100 100644
--- a/backend/src/routes/tiles.ts
+++ b/backend/src/routes/tiles.ts
@@ -54,6 +54,28 @@ router.get('/vworld/:z/:y/:x', async (req, res) => {
   await proxyUpstream(tileUrl, res, 'image/jpeg');
 });
 
+// ─── SR 민감자원 벡터타일 ───
+
+// GET /api/tiles/sr/tilejson — SR TileJSON 프록시 (source-layer 메타데이터)
+router.get('/sr/tilejson', async (_req, res) => {
+  await proxyUpstream(`${ENC_UPSTREAM}/sr`, res, 'application/json');
+});
+
+// GET /api/tiles/sr/style — SR 스타일 JSON 프록시 (레이어별 type/paint/layout 정의)
+router.get('/sr/style', async (_req, res) => {
+  await proxyUpstream(`${ENC_UPSTREAM}/style/sr`, res, 'application/json');
+});
+
+// GET /api/tiles/sr/:z/:x/:y — SR(민감자원) 벡터타일 프록시
+router.get('/sr/:z/:x/:y', async (req, res) => {
+  const { z, x, y } = req.params;
+  if (!/^\d+$/.test(z) || !/^\d+$/.test(x) || !/^\d+$/.test(y)) {
+    res.status(400).json({ error: '잘못된 타일 좌표' });
+    return;
+  }
+  await proxyUpstream(`${ENC_UPSTREAM}/sr/${z}/${x}/${y}`, res, 'application/x-protobuf');
+});
+
 // ─── S-57 전자해도 (ENC) ───
 // tiles.gcnautical.com CORS 제한 우회를 위한 프록시 엔드포인트 그룹