diff --git a/src/components/scScanner.vue b/src/components/scScanner.vue
index 2f03bc60..27a29899 100644
--- a/src/components/scScanner.vue
+++ b/src/components/scScanner.vue
@@ -2,7 +2,9 @@
 <template>
   <span class="sc-scanner" style="display:inline-flex;align-items:center;gap:4px;vertical-align:middle;">
     <!-- 扫码枪(蓝牙/USB HID):聚焦后扫码即输入,回车触发。平板蓝牙枪、PC USB枪都走这里 -->
+    <!-- 默认隐藏:多数调用页已自带扫码输入框,避免重复;需集中式扫码框时传 :showInput="true" -->
     <el-input
+      v-if="showInput"
       ref="gunInput"
       v-model="gunValue"
       :placeholder="placeholder"
@@ -21,6 +23,9 @@ export default {
     labeltext: { type: String, default: "扫码" },
     placeholder: { type: String, default: "扫码枪扫描" },
     gunWidth: { type: String, default: "180px" },
+    // 是否显示组件自带的扫码枪输入框。默认 false:调用页通常已有自己的扫码输入框,
+    // 显示会重复;需要 scScanner 作为独立集中式扫码入口时传 true。
+    showInput: { type: Boolean, default: false },
   },
   data() {
     return {