diff --git a/components.d.ts b/components.d.ts
index f57449b..650b5d0 100644
--- a/components.d.ts
+++ b/components.d.ts
@@ -12,7 +12,6 @@ export {}
 declare module 'vue' {
   export interface GlobalComponents {
     ElButton: typeof import('element-plus/es')['ElButton']
-    ElCol: typeof import('element-plus/es')['ElCol']
     ElContainer: typeof import('element-plus/es')['ElContainer']
     ElForm: typeof import('element-plus/es')['ElForm']
     ElFormItem: typeof import('element-plus/es')['ElFormItem']
@@ -21,10 +20,10 @@ declare module 'vue' {
     ElInput: typeof import('element-plus/es')['ElInput']
     ElMain: typeof import('element-plus/es')['ElMain']
     ElOption: typeof import('element-plus/es')['ElOption']
-    ElRow: typeof import('element-plus/es')['ElRow']
+    ElRadioButton: typeof import('element-plus/es')['ElRadioButton']
+    ElRadioGroup: typeof import('element-plus/es')['ElRadioGroup']
     ElSelect: typeof import('element-plus/es')['ElSelect']
     ElSlider: typeof import('element-plus/es')['ElSlider']
-    ElSwitch: typeof import('element-plus/es')['ElSwitch']
     ElTag: typeof import('element-plus/es')['ElTag']
     IPlayer: typeof import('./src/components/IPlayer/index.vue')['default']
     LandscapeGuard: typeof import('./src/components/LandscapeGuard.vue')['default']
diff --git a/src/views/arm/MechanicalArm.vue b/src/views/arm/MechanicalArm.vue
index 703177c..83fecb8 100644
--- a/src/views/arm/MechanicalArm.vue
+++ b/src/views/arm/MechanicalArm.vue
@@ -3,7 +3,7 @@
     <!-- 主体内容区 -->
     <div class="main-wrap">
       <!-- 左侧数据面板 -->
-      <div class="left-panel">
+      <div class="left-panel" :class="{ 'left-panel--dual-arm': isExplanationRobot }">
         <!-- TCP 笛卡尔坐标 -->
         <div class="panel-card">
           <div class="row dual-row">
@@ -44,7 +44,7 @@
           </div>
         </div>
 
-        <div class="joint-list">
+        <div v-if="!isExplanationRobot" class="joint-list">
           <div class="title">关节控制</div>
           <div v-for="joint in jointControls" :key="joint.name" class="joint-item">
             <label :for="joint.name">{{ joint.name }}</label>
@@ -65,6 +65,34 @@
           </div>
         </div>
 
+        <div v-else class="joint-list joint-list--dual-arm">
+          <div class="title">关节控制</div>
+          <div class="arm-columns">
+            <div v-for="arm in armJointGroups" :key="arm.key" class="arm-column">
+              <div class="arm-title">{{ arm.title }}</div>
+              <div v-for="joint in arm.joints" :key="joint.name" class="joint-item">
+                <label :for="joint.name">{{ joint.name }}</label>
+                <el-input v-model="joint.value" readonly>
+                  <template #prepend>
+                    <el-button class="press-control"
+                      @pointerdown="startPointerControl($event, () => updateJoint(joint.name, '-'))"
+                      @pointerup="endPointerControl" @pointercancel="endPointerControl">
+                      -
+                    </el-button>
+                  </template>
+                  <template #append>
+                    <el-button class="press-control"
+                      @pointerdown="startPointerControl($event, () => updateJoint(joint.name, '+'))"
+                      @pointerup="endPointerControl" @pointercancel="endPointerControl">
+                      +
+                    </el-button>
+                  </template>
+                </el-input>
+              </div>
+            </div>
+          </div>
+        </div>
+
         <div class="speed-container">
           <div class="label">速度：</div>
           <div class="speed-slider" @mouseenter="hoveredSlider = 'joint'" @mouseleave="hoveredSlider = null">
@@ -78,7 +106,7 @@
 
       <!-- 中间3D机械臂空白区域 -->
       <div class="center-view">
-        <UrdfView ref="urdfViewerRef" />
+        <UrdfView ref="urdfViewerRef" :modelPath="modelPath"/>
         <!-- 底部功能按钮 -->
         <!-- <div class="center-bottom-btns">
           <el-button type="success" size="large">零力示教</el-button>
@@ -91,6 +119,13 @@
       <div class="right-panel">
         <div class="controller">
           <div class="title">末端控制</div>
+          <div v-if="isExplanationRobot" class="arm-selector">
+            <div class="arm-selector__label">控制机械臂</div>
+            <el-radio-group v-model="selectedEndArm" class="arm-selector__options">
+              <el-radio-button value="left">左臂</el-radio-button>
+              <el-radio-button value="right">右臂</el-radio-button>
+            </el-radio-group>
+          </div>
           <div class="axis-group">
             <!-- X Axis -->
             <div class="axis-row x">
@@ -171,6 +206,13 @@
 
         <div class="controller">
           <div class="title">姿态控制</div>
+          <div v-if="isExplanationRobot" class="arm-selector">
+            <div class="arm-selector__label">控制机械臂</div>
+            <el-radio-group v-model="selectedPostureArm" class="arm-selector__options">
+              <el-radio-button value="left">左臂</el-radio-button>
+              <el-radio-button value="right">右臂</el-radio-button>
+            </el-radio-group>
+          </div>
           <div class="axis-group">
             <!-- X Axis -->
             <div class="axis-row x">
@@ -254,7 +296,7 @@
 </template>
 
 <script setup>
-import { nextTick, onMounted, onUnmounted, reactive, ref } from 'vue'
+import { computed, nextTick, onMounted, onUnmounted, reactive, ref } from 'vue'
 import UrdfView from './UrdfView.vue'
 import { getPoseApi, getJointStateApi, moveJApi, torqueOnApi, speedJApi, stopMotionApi, speedLApi } from '@/api/arm'
 import { Remove, CirclePlus } from '@element-plus/icons-vue'
@@ -264,7 +306,31 @@ const robotStore = useRobotStore()
 const deviceId = robotStore.almDeviceId
 
 const urdfViewerRef = ref()
-const jointControls = ref()
+
+const modelPath = computed(() => {
+  if (isExplanationRobot.value) {
+    return 'upper_body/robot.urdf'
+  } else {
+    return '/inspection/elfin10/elfin10.urdf.xacro'
+  }
+})
+
+const jointControls = ref([])
+const isExplanationRobot = computed(() => robotStore.robotType === 'explanation')
+const selectedEndArm = ref('left')
+const selectedPostureArm = ref('left')
+const armJointGroups = computed(() => [
+  {
+    key: 'left',
+    title: '左臂',
+    joints: jointControls.value.filter(joint => /^left_arm_/i.test(joint.name))
+  },
+  {
+    key: 'right',
+    title: '右臂',
+    joints: jointControls.value.filter(joint => /^right_arm_/i.test(joint.name))
+  }
+])
 
 // TCP坐标数据
 const tcp = ref({
@@ -512,11 +578,16 @@ onUnmounted(() => {
     // 左侧面板
     .left-panel {
       width: 400px;
+      flex-shrink: 0;
       padding: 20px;
       overflow-y: auto;
       background: $color-background-panel;
       border-right: 1px solid $color-accent-border;
 
+      &--dual-arm {
+        width: 640px;
+      }
+
       .panel-card {
         padding: 12px;
 
@@ -525,11 +596,27 @@ onUnmounted(() => {
           gap: 20px;
           margin-bottom: 12px;
 
+          .coord-item {
+            display: flex;
+            flex: 1;
+            align-items: center;
+            gap: 8px;
+            min-width: 0;
+
+            .key {
+              width: 26px;
+              flex-shrink: 0;
+            }
+          }
+
           .number {
-            width: 170px;
+            flex: 1;
+            min-width: 0;
             border-radius: 5px;
             padding: 6px;
             background: $color-background-card;
+            overflow: hidden;
+            text-overflow: ellipsis;
           }
         }
       }
@@ -546,6 +633,19 @@ onUnmounted(() => {
           margin-bottom: 10px;
         }
 
+        .arm-columns {
+          display: grid;
+          grid-template-columns: repeat(2, minmax(0, 1fr));
+          gap: 16px;
+        }
+
+        .arm-title {
+          margin-bottom: 10px;
+          font-size: 18px;
+          font-weight: bold;
+          text-align: center;
+        }
+
 
         .joint-item {
           display: flex;
@@ -607,6 +707,17 @@ onUnmounted(() => {
             margin: 0;
           }
         }
+
+        &--dual-arm {
+          .joint-item {
+            padding: 8px;
+
+            label {
+              width: 82px;
+              font-size: 14px;
+            }
+          }
+        }
       }
 
 
@@ -625,6 +736,36 @@ onUnmounted(() => {
       background: $color-background-panel;
       border-left: 1px solid $color-accent-border;
 
+      .arm-selector {
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        gap: 16px;
+        margin-bottom: 24px;
+        padding: 12px 14px;
+        border: 1px solid $color-accent-border;
+        border-radius: 8px;
+        background: $color-background-base;
+
+        &__label {
+          flex-shrink: 0;
+          font-size: 16px;
+          font-weight: bold;
+        }
+
+        &__options {
+          flex: 1;
+
+          :deep(.el-radio-button) {
+            width: 50%;
+          }
+
+          :deep(.el-radio-button__inner) {
+            width: 100%;
+          }
+        }
+      }
+
       .controller {
         margin-bottom: 48px;