diff --git a/plugins/stats_dashboard/templates/robot_management.html b/plugins/stats_dashboard/templates/robot_management.html
index 8168757..a58ec9c 100644
--- a/plugins/stats_dashboard/templates/robot_management.html
+++ b/plugins/stats_dashboard/templates/robot_management.html
@@ -151,8 +151,8 @@
         <div v-else>
             <div class="chart-container">
                 <h3>消息数量趋势</h3>
-                <!-- 使用div作为容器，动态创建canvas -->
-                <div ref="chartContainer" style="width: 100%; height: 300px;"></div>
+                <!-- 使用唯一ID -->
+                <div :id="'chart-container-' + currentGroupId" style="width: 100%; height: 300px;"></div>
             </div>
             <div style="margin-top: 20px; text-align: center;">
                 <el-radio-group v-model="trendDays" @change="loadMessageTrend">
@@ -455,14 +455,19 @@
                 try {
                     console.log('开始渲染图表');
                     
-                    // 获取容器元素
-                    const container = this.$refs.chartContainer;
+                    // 使用唯一ID获取容器元素
+                    const containerId = 'chart-container-' + this.currentGroupId;
+                    console.log('尝试获取图表容器，ID:', containerId);
+                    const container = document.getElementById(containerId);
+                    
                     if (!container) {
-                        console.error('找不到图表容器');
+                        console.error('找不到图表容器，ID:', containerId);
                         this.$message.error('无法找到图表容器，请尝试重新打开对话框');
                         return;
                     }
                     
+                    console.log('找到图表容器:', container);
+                    
                     // 清空容器
                     container.innerHTML = '';