diff --git a/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/MapControls.vue b/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/MapControls.vue
index b4d094c..e506165 100644
--- a/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/MapControls.vue
+++ b/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/MapControls.vue
@@ -41,14 +41,23 @@
 </template>
 
 <script setup>
-import { ref } from "vue";
+import { ref, computed } from "vue";
 import { MAP_TOOLS, DEVICE_WATCH } from "../../constants";
 
+// 定义props
+const props = defineProps({
+  // 当前激活的工具
+  activeToolKey: {
+    type: String,
+    default: null
+  }
+})
+
 // 卫星设备观看状态
 const isWatchingDevice = ref(false);
 
-// 当前激活的测量工具（默认激活模型对比）
-const activeTool = ref('modelCompare');
+// 当前激活的测量工具 - 使用computed从props获取
+const activeTool = computed(() => props.activeToolKey)
 
 // 定义对外事件
 const emit = defineEmits(["device-watch", "tool-change"]);
@@ -105,15 +114,13 @@ const handleDeviceWatch = () => {
  */
 const handleToolClick = (toolKey) => {
   // 点击同一个工具则取消激活
-  if (activeTool.value === toolKey) {
-    activeTool.value = null;
-  } else {
-    activeTool.value = toolKey;
-  }
-  console.log("切换地图工具:", toolKey);
+  const newActiveState = activeTool.value === toolKey ? null : toolKey
+  const isActive = newActiveState === toolKey
+
+  console.log("切换地图工具:", toolKey, "激活状态:", isActive);
   emit("tool-change", {
     tool: toolKey,
-    active: activeTool.value === toolKey,
+    active: isActive,
   });
 };
 </script>
diff --git a/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/index.vue b/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/index.vue
index 748a8de..727c7b2 100644
--- a/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/index.vue
+++ b/packages/screen/src/views/3DSituationalAwarenessRefactor/components/MapViewer/index.vue
@@ -7,6 +7,7 @@
     <!-- 延迟渲染确保目标元素已存在 -->
     <Teleport to="#sa-controls" v-if="isMounted">
       <MapControls
+        :active-tool-key="activeToolKey"
         @tool-change="handleToolChange"
         @device-watch="handleDeviceWatch"
       />
@@ -19,6 +20,15 @@ import { ref, onMounted } from 'vue'
 import { MapViewport } from '@/map'
 import MapControls from './MapControls.vue'
 
+// 定义props
+const props = defineProps({
+  // 当前激活的工具键
+  activeToolKey: {
+    type: String,
+    default: null
+  }
+})
+
 /**
  * 向外抛出的事件
  * @event tool-change - 地图工具变化事件，包含 { tool: string, active: boolean }