diff --git a/src/components/SearchBox.vue b/src/components/SearchBox.vue
index a27b609..49f258d 100644
--- a/src/components/SearchBox.vue
+++ b/src/components/SearchBox.vue
@@ -8,6 +8,7 @@
         ref="scaninput"
         :placeholder="keyCode === '' ? placeholder : keyCode"
         :disabled="disabled"
+        :readOnly="readOnly"
         :value="value"
         @focus="handleFocus($event)"
         @blur="handleBlur($event)"
@@ -66,7 +67,8 @@ export default {
     return {
       placeholder: '',
       type: '',
-      cur: ''
+      cur: '',
+      readOnly: false
     }
   },
   mounted () {
@@ -75,6 +77,10 @@ export default {
   methods: {
     handleScan () {
       this.$refs.scaninput.focus()
+      this.readOnly = true
+      setTimeout(() => {
+        this.readOnly = false
+      }, 200)
       this.placeholder = '请扫码键输入'
       this.type = true
       this.$emit('input', '')