diff --git a/frontend/src/views/aiAlarmSetting/index.vue b/frontend/src/views/aiAlarmSetting/index.vue
index d3d9a9f..88766a7 100644
--- a/frontend/src/views/aiAlarmSetting/index.vue
+++ b/frontend/src/views/aiAlarmSetting/index.vue
@@ -30,7 +30,7 @@ const channelList = ref<ChannelItem[]>([
     { channel_no: 11, singal_type: '4~20mA', output_node: '', limit_low: 0, limit_high: 8, delay: 8, enabled: false },
     { channel_no: 12, singal_type: '1~5V', output_node: '', limit_low: 0, limit_high: 8, delay: 8, enabled: false },
 ])
-
+const signalTypeOptions = ref(['1~5V', '4~20mA'])
 const nodeOptions = ref(['开出一', '开出二', '开出三', '开出四', '开出五', '开出六', '开出七', '开出八', '开出九', '开出十', '开出十一', '开出十二'])
 const isswitch = ref(false)
 const dialogVisible = ref(false)
@@ -111,11 +111,14 @@ onMounted(() => {
             <div class="row" v-for="(item, idx) in channelList" :key="idx">
                 <div class="cell cell-no">{{ item.channel_no }}</div>
                 <div class="cell cell-type" style="background: #ffffff;">
-                  <el-input
+                  <!-- <el-input
                     v-model="item.singal_type" 
                     placeholder="" 
                     disabled
-                  />
+                  /> -->
+                  <el-select v-model="item.singal_type">
+                        <el-option v-for="line in signalTypeOptions" :key="line" :value="line" :label="line"></el-option>
+                    </el-select>
                 </div>
                 <div class="cell cell-line" style="background: #ffffff;">
                     <el-input-number v-model="item.limit_low"
diff --git a/frontend/src/views/aiChannelSetting/index.vue b/frontend/src/views/aiChannelSetting/index.vue
index 7dc2fb5..00adc80 100644
--- a/frontend/src/views/aiChannelSetting/index.vue
+++ b/frontend/src/views/aiChannelSetting/index.vue
@@ -36,6 +36,7 @@ interface ChannelItem {
   limit_low: number
   limit_high: number
 }
+const signalTypeOptions = ref(['1~5V', '4~20mA'])
 const currentInputType = ref('')
 const openKeyboard = (index: number, value: number, type: string) => {
   currentInputType.value = type
@@ -83,7 +84,7 @@ const handlePasswordConfirm = () => {
       isswitch.value = false
     } else {
       ElMessage.error('保存失败')
-       isswitch.value = false
+      isswitch.value = false
     }
   }).catch(err => {
     isswitch.value = false
@@ -126,7 +127,9 @@ onMounted(() => {
       <div class="row" v-for="(item, idx) in channelList" :key="idx">
         <div class="cell cell-no">{{ item.ch }}</div>
         <div class="cell cell-type" style="background: #ffffff;">
-          <el-input disabled v-model="item.singal_type" placeholder="" />
+          <el-select v-model="item.singal_type">
+            <el-option v-for="line in signalTypeOptions" :key="line" :value="line" :label="line"></el-option>
+          </el-select>
         </div>
         <div class="cell cell-line" style="background: #ffffff;">
           <el-select v-model="item.line_no">
@@ -276,30 +279,31 @@ onMounted(() => {
   }
 }
 
-  :deep(.el-select__wrapper),
-  :deep(.el-input__wrapper) {
-    border: none !important;
-    box-shadow: none !important;
-    background: transparent !important;
-    text-align: center !important;
-  }
+:deep(.el-select__wrapper),
+:deep(.el-input__wrapper) {
+  border: none !important;
+  box-shadow: none !important;
+  background: transparent !important;
+  text-align: center !important;
+}
 
-  :deep(.el-select__wrapper.is-hover),
-  :deep(.el-input__wrapper.is-hover),
-  :deep(.el-select__wrapper.is-focused),
-  :deep(.el-input__wrapper.is-focused) {
-    box-shadow: none !important;
-    border: none !important;
-  }
+:deep(.el-select__wrapper.is-hover),
+:deep(.el-input__wrapper.is-hover),
+:deep(.el-select__wrapper.is-focused),
+:deep(.el-input__wrapper.is-focused) {
+  box-shadow: none !important;
+  border: none !important;
+}
 
-  :deep(.el-input__inner) {
-    text-align: center !important;
-    font-size: 14px !important;
-  }
+:deep(.el-input__inner) {
+  text-align: center !important;
+  font-size: 14px !important;
+}
+
+:deep(.el-input.is-disabled .el-input__inner) {
+  color: #606266;
+  -webkit-text-fill-color: #606266;
+}
 
-  :deep(.el-input.is-disabled .el-input__inner) {
-    color: #606266;
-    -webkit-text-fill-color: #606266;
-  }
 // 去掉所有边框 + 阴影
 </style>
\ No newline at end of file
diff --git a/frontend/src/views/aoChannelSetting/index.vue b/frontend/src/views/aoChannelSetting/index.vue
index 9ffc102..d6ecc95 100644
--- a/frontend/src/views/aoChannelSetting/index.vue
+++ b/frontend/src/views/aoChannelSetting/index.vue
@@ -42,7 +42,7 @@ const openKeyboard = (index: number, value: number, type: string) => {
   currentInputValue.value = value
   keyboardVisible.value = true
 }
-
+const signalTypeOptions = ref(['1~5V', '4~20mA'])
 const handleKeyboardConfirm = (value: string) => {
   if (currentInputIndex.value >= 0) {
     const channel = channelList.value[currentInputIndex.value]
@@ -124,7 +124,9 @@ onMounted(() => {
       <div class="row" v-for="(item, idx) in channelList" :key="idx">
         <div class="cell cell-no">{{ item.ch }}</div>
         <div class="cell cell-type" style="background: #ffffff;">
-          <el-input v-model="item.singal_type" disabled placeholder="" />
+          <el-select v-model="item.singal_type">
+            <el-option v-for="line in signalTypeOptions" :key="line" :value="line" :label="line"></el-option>
+          </el-select>
         </div>
         <div class="cell cell-line" style="background: #ffffff;">
           <el-select v-model="item.line_no">