diff --git a/modeler/src/views/decision/designer/designer.vue b/modeler/src/views/decision/designer/designer.vue
index e91fb6c..05fd343 100644
--- a/modeler/src/views/decision/designer/designer.vue
+++ b/modeler/src/views/decision/designer/designer.vue
@@ -13,7 +13,7 @@
             <TressCard
               ref="treesCardRef"
               :scenarioId="currentScenarioId"
-              :platformId="currentPlatformId"
+              :treeId="currentTreeId"
               @create-tree="handleCreateTree"
               @select-tree="handleSelectTree"
             />
@@ -128,6 +128,7 @@ export default defineComponent({
     const nodeCommands = ref<NodeCommand[]>([])
     const currentScenarioId = ref<number | undefined>();
     const currentPlatformId = ref<number | null>(null);
+    const currentTreeId = ref<number | null>(null);
     const fromScenarioPage = ref<boolean>(false);
 
     const {
@@ -326,12 +327,35 @@ export default defineComponent({
       selectedModelNode.value = null;
       selectedNodeTaskElement.value = null;
       loadSubPlatforms(currentPlatformId.value);
-      console.log('currentBehaviorTree.value: ', tree);
   
       nextTick(() => {
         initGraph();
-        console.log('initGraphTree: ', tree);
-        
+      });
+    };
+
+    const loadTargetTree = (tree: BehaviorTree) => {
+      currentTreeId.value = tree.id;
+      resolveBehaviorTreeGraph(tree.id, tree.xmlContent).then(nodeGraph => {
+          applyBehaviorTree({
+            ...tree,
+            graph: nodeGraph,
+          });
+        }).catch(error => {
+          console.error('resolve tree graph error:', error);
+          message.error('加载行为树图失败');
+        });
+    };
+
+    const handleCreateTree = () => {
+      destroyGraph();
+    
+      selectedModelNode.value = null;
+      selectedNodeTaskElement.value = null;
+      subPlatforms.value = []; // 重置下属平台
+      
+      initGraphConfig();
+      nextTick(() => {
+        initGraph();
       });
     };
 
@@ -339,15 +363,7 @@ export default defineComponent({
       console.info('handleSelectTree', tree);
       findOneTreeById(tree.id).then(r => {
         if (r.data) {
-          resolveBehaviorTreeGraph(r.data.id, r.data.xmlContent).then(nodeGraph => {
-            applyBehaviorTree({
-              ...r.data,
-              graph: nodeGraph,
-            });
-          }).catch(error => {
-            console.error('resolve tree graph error:', error);
-            message.error('加载行为树图失败');
-          });
+          loadTargetTree(r.data);
         } else {
           message.error(r.msg ?? '行为树不存在.');
         }
@@ -381,18 +397,7 @@ export default defineComponent({
       currentScenarioId.value = scenario.id;
     };
 
-    const handleCreateTree = () => {
-      destroyGraph();
-      initGraphConfig();
 
-      selectedModelNode.value = null;
-      selectedNodeTaskElement.value = null;
-      subPlatforms.value = []; // 重置下属平台
-
-      nextTick(() => {
-        initGraph();
-      });
-    };
 
     // 初始化X6画布
     const initGraph = () => {
@@ -404,9 +409,7 @@ export default defineComponent({
       try {
         graph.value = createCanvas(canvas.value);
         console.log('画布初始化成功');
-        if (!currentBehaviorTree.value) {
-          initGraphConfig();
-        }
+
         createElements();
 
         graph.value?.on('edge:click', (args: any) => {
@@ -457,22 +460,23 @@ export default defineComponent({
       console.info('init');
        
       nextTick(() => {
+        initGraphConfig();
         initGraph();
-        window.addEventListener('resize', handleResize);
         console.log('节点挂载完成');
 
+        window.addEventListener('resize', handleResize);
+
         resolveQuery(); 
         
-        if (currentPlatformId.value) { 
+        if (currentPlatformId.value) {
           findOneTreeByPlatformId(currentPlatformId.value).then(r => {
             if (r.data) {
-              handleSelectTree(r.data);
+              loadTargetTree(r.data);
             } else {
               handleCreateTree();
             }
           });
         } else {
-          currentPlatformId.value = null;
           handleCreateTree();
         }
       });
@@ -544,6 +548,7 @@ export default defineComponent({
       nodeCommands,
       currentScenarioId,
       currentPlatformId,
+      currentTreeId,
       platforms,
       subPlatforms,
       scenariosCardRef,
diff --git a/modeler/src/views/decision/designer/trees-card.vue b/modeler/src/views/decision/designer/trees-card.vue
index 69988e8..e3e4c2a 100644
--- a/modeler/src/views/decision/designer/trees-card.vue
+++ b/modeler/src/views/decision/designer/trees-card.vue
@@ -18,7 +18,7 @@
       </div>
       <a-list :data-source="behaviorTrees || []" size="small" style="min-height: 25vh">
         <template #renderItem="{ item }">
-          <a-list-item :class="{ 'ks-item-selected': platformId === item.id || selectedId === item.id }" @click="()=> handleSelect(item)">
+          <a-list-item :class="{ 'ks-item-selected': treeId === item.id }" @click="()=> handleSelect(item)">
             <a-flex>
               <a-tooltip placement="bottom">
                 <template #title>
@@ -67,7 +67,7 @@ import { substring } from '@/utils/strings';
 export default defineComponent({
   props: {
     scenarioId: Number as PropType<number | undefined>,
-    platformId: Number as PropType<number | null>,
+    treeId: Number as PropType<number | null>,
   },
   emits: ['select-tree', 'create-tree'],
   components: {
@@ -87,7 +87,6 @@ export default defineComponent({
     });
     const activeKey = ref<number>(1);
     const totalTress = ref<number>(0);
-    const selectedId = ref<number | null>(null);
 
     watch(
       () => props.scenarioId, 
@@ -99,17 +98,7 @@ export default defineComponent({
         }
         behaviorTreeQuery.value.pageNum = 1;
         behaviorTreeQuery.value.scenarioId = props.scenarioId;
-        loadTress(() => {
-          if (props.platformId) {
-            return;
-          }
-          // 默认选中第一个行为树
-          const selectedTree = behaviorTrees.value[0];
-          if (selectedTree) {
-            selectedId.value = selectedTree.id;
-            emit('select-tree', selectedTree);
-          }
-        });
+        loadTress();
       }, 
       { immediate: true }
     );
@@ -152,7 +141,6 @@ export default defineComponent({
     ];
 
     const handleSelect = (record: BehaviorTree) => {
-      selectedId.value = record.id;
       emit('select-tree', record);
     };
 
@@ -171,7 +159,6 @@ export default defineComponent({
       totalTress,
       substring,
       activeKey,
-      selectedId,
       behaviorTrees,
       behaviorTreeQuery,
       loadTress,