diff --git a/flossom-ui/src/views/system/instrumentSerial/index.vue b/flossom-ui/src/views/system/instrumentSerial/index.vue
index c0f1a57..a1082cb 100644
--- a/flossom-ui/src/views/system/instrumentSerial/index.vue
+++ b/flossom-ui/src/views/system/instrumentSerial/index.vue
@@ -32,7 +32,7 @@
           :style="{ width: '100%' }"
           clearable
         >
-          <el-option label="全部" value="" />
+          <el-option label="全部" :value="null" />
           <el-option label="已绑定" value="0" />
           <el-option label="未绑定" value="1" />
           <el-option label="已解绑" value="2" />