diff --git a/code/VideoAccess-VCMP/api/app/lib/controllers/mirror/index.js b/code/VideoAccess-VCMP/api/app/lib/controllers/mirror/index.js
index c90f5e3..d722713 100644
--- a/code/VideoAccess-VCMP/api/app/lib/controllers/mirror/index.js
+++ b/code/VideoAccess-VCMP/api/app/lib/controllers/mirror/index.js
@@ -271,7 +271,7 @@ async function get (ctx) {
                const curKey = nextKeyPre + index
                let child = JSON.parse(JSON.stringify(mirrorTrees.filter(mt => mt.dependence == tn.id)))
                let cameras = mirrorCameras.filter(mc => mc.treeIds.includes(tn.id))
-               if (cameras) {
+               if (cameras.length) {
                   // 有摄像头 向下再创建一级节点
                   tn.children = cameras.map((c, cIndex) => {
                      return {