diff --git a/src/apps/AppMonitoringObject/Add.vue b/src/apps/AppMonitoringObject/Add.vue
index 43c417f0..9979fc90 100644
--- a/src/apps/AppMonitoringObject/Add.vue
+++ b/src/apps/AppMonitoringObject/Add.vue
@@ -528,7 +528,7 @@ export default {
         // this.form.birthday = this.$idCardNoUtil.getIdCardInfo(idNumber)?.birthday
         this.form.age = this.$calcAge(this.form.idNumber)
         let birth = idNumber.substr(6,8)
-        this.form.birthday = birth.replace(/(.{4})(.{2})/,"$1-$2-");
+        this.form.birthDate = birth.replace(/(.{4})(.{2})/,"$1-$2-");
       },
       deep: true,
     },