diff --git a/src/views/uploadPdf/bindMapInfo.vue b/src/views/uploadPdf/bindMapInfo.vue
index 78579bb14..c737f5ff6 100644
--- a/src/views/uploadPdf/bindMapInfo.vue
+++ b/src/views/uploadPdf/bindMapInfo.vue
@@ -139,7 +139,7 @@ export default {
             this.field = field === this.field ? '' : field;
         },
         clickEvent(em) {
-            if (this.field.toUpperCase() === 'selectDevice'.toUpperCase()) {
+            if (this.field.toUpperCase() === 'selectDevice'.toUpperCase() && !this.formModel.deviceIds.includes(em.deviceCode)) {
                 const device = this.getDeviceByEm(em);
                 this.formModel.deviceIds.push(device.code);
             }