diff --git a/src/components/JMultipleDatePicker.vue b/src/components/JMultipleDatePicker.vue
index 7a26c80..e6052f4 100644
--- a/src/components/JMultipleDatePicker.vue
+++ b/src/components/JMultipleDatePicker.vue
@@ -101,7 +101,8 @@ export default {
         const oldVal = this.checkedValue.join(',')
         if (newVal !== oldVal) {
           if (newVal) {
-            this.checkedValue = [...new Set(newVal.split(','))]
+            // 去重、去掉格式不对的
+            this.checkedValue = [...new Set(newVal.split(','))].filter(dateStr => dateStr && /^\d{4}-\d{2}-\d{2}$/.test(dateStr))
           } else {
             this.checkedValue = []
           }