diff --git a/src/views/bigScreen/enpComponents/cems.vue b/src/views/bigScreen/enpComponents/cems.vue
index e254f934..3398b103 100644
--- a/src/views/bigScreen/enpComponents/cems.vue
+++ b/src/views/bigScreen/enpComponents/cems.vue
@@ -112,7 +112,8 @@ export default {
                     text: '设备名称'
                 },
                 tooltip: {
-                    trigger: 'axis'
+                    trigger: 'axis',
+                    confine: true,
                 },
                 grid: {
                     left: '3%',