diff --git a/src/components/GenericMonitorList.vue b/src/components/GenericMonitorList.vue
index c3359dc4..8f3658e2 100644
--- a/src/components/GenericMonitorList.vue
+++ b/src/components/GenericMonitorList.vue
@@ -70,6 +70,9 @@
           border
           stripe
           style="width: 100%"
+          table-layout="auto"
+          :fit="true"
+          :scrollbar-always-on="true"
           @sort-change="handleSortChange"
       >
         <el-table-column
@@ -138,6 +141,24 @@ const tableColumns = computed(() => {
   return props.columnsConfig.map(col => {
     const newCol = {...col};
     newCol.prop = Array.isArray(col.dataIndex) ? col.dataIndex.join('.') : col.dataIndex;
+
+    // 添加智能默认 formatter
+    if (!newCol.formatter) {
+      newCol.formatter = (row, column, cellValue) => {
+        if (typeof cellValue === 'object' && cellValue !== null) {
+          try {
+            return JSON.stringify(cellValue, null, 2); // 格式化为可读的JSON字符串
+          } catch (e) {
+            console.warn('Failed to stringify object for display:', cellValue, e);
+            return '[Object]'; // 无法序列化时显示简短提示
+          }
+        } else if (Array.isArray(cellValue)) {
+            return cellValue.join(', '); // 数组也默认用逗号连接
+        }
+        return cellValue;
+      };
+    }
+
     return newCol;
   });
 });
diff --git a/src/views/monitor/SensorDataView.vue b/src/views/monitor/SensorDataView.vue
index 8941091a..08845bbe 100644
--- a/src/views/monitor/SensorDataView.vue
+++ b/src/views/monitor/SensorDataView.vue
@@ -45,8 +45,7 @@ const sensorDataColumns = [
     title: '数据',
     dataIndex: 'data',
     key: 'data',
-    // 将数组格式化为逗号分隔的字符串
-    formatter: (row, column, cellValue) => Array.isArray(cellValue) ? cellValue.join(', ') : cellValue,
+    // 移除 formatter，由 GenericMonitorList 自动处理对象和数组显示
     minWidth: 150,
   },
   {