diff --git a/src/components/AlertChart.vue b/src/components/AlertChart.vue
index e901896..31eaee8 100644
--- a/src/components/AlertChart.vue
+++ b/src/components/AlertChart.vue
@@ -9,27 +9,42 @@
         <el-tab-pane label="本周" name="second">
           <div ref="weekLineChartDom" class="chart-container"></div> <!-- 本周图表 -->
         </el-tab-pane>
+        <el-tab-pane label="最近30天" name="third"> <!-- 新增最近30天选项卡 -->
+          <div ref="monthLineChartDom" class="chart-container"></div> <!-- 最近30天图表 -->
+        </el-tab-pane>
       </el-tabs>
     </el-card>
   </div>
 </template>
 
 <script setup>
-import { ref, onMounted, watch } from 'vue';
+import { ref, onMounted, watch, nextTick } from 'vue';
 import * as echarts from 'echarts';
+import { BoxApi } from '@/utils/boxApi.ts';
 import dayjs from 'dayjs';
-import { BoxApi } from '@/utils/boxApi.ts'; // 使用 BoxApi
+import { debounce } from 'lodash';
 
 const activeName = ref('first');
-const hourlyCounts = ref(Array(24).fill(0));  // 初始化24小时的计数器
-const dailyCounts = ref(Array(7).fill(0));    // 初始化7天的计数器
-const weekDates = ref([]);                    // 存储前7天的日期
+const hourlyCounts = ref(Array(24).fill(0)); // 初始化24小时的计数器
 const chartInstanceToday = ref(null);
-const chartInstanceWeek = ref(null);
 const todayLineChartDom = ref(null);
+
+const dailyCounts = ref(Array(7).fill(0)); // 初始化7天的计数器
+const weekDates = ref([]); // 存储前7天的日期
+const chartInstanceWeek = ref(null);
 const weekLineChartDom = ref(null);
 
-const apiInstance = new BoxApi();  // 创建 BoxApi 实例
+const monthlyCounts = ref(Array(30).fill(0)); // 初始化30天的计数器
+const monthDates = ref([]); // 存储前30天的日期
+const chartInstanceMonth = ref(null); // 30天的图表实例
+const monthLineChartDom = ref(null);
+
+const apiInstance = new BoxApi();
+const allEvents = ref([]); // 使用响应式 allEvents
+
+let isTodayChartInitialized = false;
+let isWeekChartInitialized = false;
+let isMonthChartInitialized = false; // 30天图表是否初始化
 
 // 计算前7天的日期
 const calculateWeekDates = () => {
@@ -37,6 +52,84 @@ const calculateWeekDates = () => {
   weekDates.value = Array.from({ length: 7 }, (_, i) => today.subtract(i, 'day').format('YYYY-MM-DD')).reverse();
 };
 
+// 计算前30天的日期
+const calculateMonthDates = () => {
+  const today = dayjs();
+  monthDates.value = Array.from({ length: 30 }, (_, i) => today.subtract(i, 'day').format('YYYY-MM-DD')).reverse();
+};
+
+// 初始化今日图表
+const initTodayChart = () => {
+  if (todayLineChartDom.value) {
+    chartInstanceToday.value = echarts.init(todayLineChartDom.value);
+
+    const option = {
+      title: {
+        text: '今日告警数量趋势',
+        top: '3%',
+        textStyle: {
+          color: '#fff',
+          fontWeight: 'bold',
+        },
+      },
+      tooltip: {
+        trigger: 'axis',
+        axisPointer: {
+          type: 'cross',
+        },
+        formatter: function (params) {
+          const { value, name } = params[0];
+          return `${name}<br/>告警数量: ${value}`;
+        },
+        textStyle: {
+          color: '#fff',
+          fontSize: 12,
+        },
+      },
+      xAxis: {
+        type: 'category',
+        boundaryGap: false,
+        data: Array.from({ length: 24 }, (_, i) => `${i.toString().padStart(2, '0')}:00`),
+        axisLabel: {
+          rotate: 0,
+          color: '#fff',
+        },
+      },
+      yAxis: {
+        type: 'value',
+        min: 0,
+        minInterval: 1,
+        axisLabel: {
+          color: '#fff',
+        },
+      },
+      series: [
+        {
+          name: '告警数量',
+          type: 'line',
+          data: hourlyCounts.value.length > 0 ? hourlyCounts.value : Array(24).fill(0),
+          smooth: true,
+          label: {
+            show: true,
+            position: 'top',
+            textStyle: {
+              color: '#fff',
+            },
+          },
+          lineStyle: {
+            color: 'rgb(60,178,239)', // 曲线颜色
+            width: 2,
+          },
+          areaStyle: {
+            color: 'rgba(74, 172, 178, 0.3)', // 覆盖面积颜色
+          },
+        },
+      ],
+    };
+    chartInstanceToday.value.setOption(option);
+  }
+};
+
 // 初始化本周图表
 const initWeekChart = () => {
   if (weekLineChartDom.value) {
@@ -49,13 +142,13 @@ const initWeekChart = () => {
         textStyle: {
           color: '#fff',
           fontSize: 18,
-          fontWeight: 'bold'
-        }
+          fontWeight: 'bold',
+        },
       },
       tooltip: {
         trigger: 'axis',
         axisPointer: {
-          type: 'cross'
+          type: 'cross',
         },
         formatter: function (params) {
           const { value } = params[0];
@@ -63,19 +156,19 @@ const initWeekChart = () => {
         },
         textStyle: {
           color: '#fff',
-          fontSize: 12
-        }
+          fontSize: 12,
+        },
       },
       xAxis: {
         type: 'category',
         boundaryGap: true,
-        data: weekDates.value.length > 0 ? weekDates.value : Array.from({ length: 7 }, (_, i) => `日期 ${i+1}`),
+        data: weekDates.value.length > 0 ? weekDates.value : Array.from({ length: 7 }, (_, i) => `日期 ${i + 1}`),
         axisLabel: {
           rotate: 0,
           interval: 0,
           color: '#fff',
-          fontSize: 12
-        }
+          fontSize: 12,
+        },
       },
       yAxis: {
         type: 'value',
@@ -83,8 +176,8 @@ const initWeekChart = () => {
         minInterval: 1,
         axisLabel: {
           color: '#fff',
-          fontSize: 12
-        }
+          fontSize: 12,
+        },
       },
       series: [
         {
@@ -97,35 +190,42 @@ const initWeekChart = () => {
             position: 'top',
             textStyle: {
               color: '#fff',
-              fontSize: 12
-            }
-          }
-        }
-      ]
+              fontSize: 12,
+            },
+          },
+          lineStyle: {
+            color: 'rgb(60,178,239)', // 曲线颜色
+            width: 2,
+          },
+          areaStyle: {
+            color: 'rgba(74, 172, 178, 0.3)', // 覆盖面积颜色
+          },
+        },
+      ],
     };
 
     chartInstanceWeek.value.setOption(option);
   }
 };
 
-// 初始化今日图表
-const initTodayChart = () => {
-  if (todayLineChartDom.value) {
-    chartInstanceToday.value = echarts.init(todayLineChartDom.value);
+// 初始化最近30天图表
+const initMonthChart = () => {
+  if (monthLineChartDom.value) {
+    chartInstanceMonth.value = echarts.init(monthLineChartDom.value);
 
     const option = {
       title: {
-        text: '今日告警数量趋势',
+        text: '最近30天告警数量趋势',
         top: '3%',
         textStyle: {
           color: '#fff',
-          fontWeight: 'bold'
-        }
+          fontWeight: 'bold',
+        },
       },
       tooltip: {
         trigger: 'axis',
         axisPointer: {
-          type: 'cross'
+          type: 'cross',
         },
         formatter: function (params) {
           const { value, name } = params[0];
@@ -133,17 +233,17 @@ const initTodayChart = () => {
         },
         textStyle: {
           color: '#fff',
-          fontSize: 12
-        }
+          fontSize: 12,
+        },
       },
       xAxis: {
         type: 'category',
         boundaryGap: false,
-        data: Array.from({ length: 24 }, (_, i) => `${i.toString().padStart(2, '0')}:00`),
+        data: monthDates.value,
         axisLabel: {
           rotate: 0,
           color: '#fff',
-        }
+        },
       },
       yAxis: {
         type: 'value',
@@ -151,38 +251,44 @@ const initTodayChart = () => {
         minInterval: 1,
         axisLabel: {
           color: '#fff',
-        }
+        },
       },
       series: [
         {
           name: '告警数量',
           type: 'line',
-          data: hourlyCounts.value.length > 0 ? hourlyCounts.value : Array(24).fill(0),
+          data: monthlyCounts.value.length > 0 ? monthlyCounts.value : Array(30).fill(0),
           smooth: true,
           label: {
             show: true,
             position: 'top',
             textStyle: {
               color: '#fff',
-            }
-          }
-        }
-      ]
+            },
+          },
+          lineStyle: {
+            color: 'rgb(60,178,239)', // 曲线颜色
+            width: 2,
+          },
+          areaStyle: {
+            color: 'rgba(74, 172, 178, 0.3)', // 覆盖面积颜色
+          },
+        },
+      ],
     };
-    chartInstanceToday.value.setOption(option);
+    chartInstanceMonth.value.setOption(option);
   }
 };
 
-// 分批获取并处理告警数据
+// 获取并处理告警数据
 const fetchAndProcessEvents = async (token) => {
   try {
     let currentPage = 1;
-    const pageSize = 2000;  // 每次加载100条数据
-    let allEvents = [];
+    const pageSize = 1000;
 
     // 第一次请求，获取告警总数
     const { tableData: firstBatch, totalItems } = await apiInstance.getEvents(token, pageSize, currentPage);
-    allEvents = [...firstBatch];
+    allEvents.value = [...firstBatch]; // 使用 allEvents.value
 
     // 根据告警总数逐页加载所有数据
     const totalPages = Math.ceil(totalItems / pageSize);
@@ -191,42 +297,46 @@ const fetchAndProcessEvents = async (token) => {
     while (currentPage < totalPages) {
       currentPage++;
       const { tableData: nextBatch } = await apiInstance.getEvents(token, pageSize, currentPage);
-      allEvents = [...allEvents, ...nextBatch];
-
-      // 每次加载数据后逐步更新图表
-      processEventData(allEvents);
+      allEvents.value = [...allEvents.value, ...nextBatch]; // 使用 allEvents.value
     }
 
-    // 最终处理全部数据
-    processEventData(allEvents);
+    // 处理数据
+    processEventData(allEvents.value); // 今日告警数据
+    processWeekData(); // 本周告警数据
+    processMonthData(); // 最近30天告警数据
   } catch (error) {
     console.error("Error fetching events:", error);
   }
 };
 
-// 处理告警数据并更新图表
+// 处理今日告警数据并更新图表
 const processEventData = (events) => {
-  // 重置计数器
   hourlyCounts.value = Array(24).fill(0);
-  dailyCounts.value = Array(7).fill(0);
-
   const today = new Date();
   const startOfToday = new Date(today.getFullYear(), today.getMonth(), today.getDate());
   const endOfToday = new Date(today.getFullYear(), today.getMonth(), today.getDate() + 1);
 
-  // 统计数据
-  events.forEach(event => {
+  events.forEach((event) => {
     const endedAt = event.ended_at;
     if (endedAt) {
       const endedDate = new Date(endedAt);
-
-      // 统计今日每小时的告警数量
       if (endedDate >= startOfToday && endedDate < endOfToday) {
         const hour = endedDate.getHours();
         hourlyCounts.value[hour] += 1;
       }
+    }
+  });
 
-      // 统计最近7天的告警数量
+  updateCharts();
+};
+
+// 处理本周告警数据
+const processWeekData = () => {
+  dailyCounts.value = Array(7).fill(0);
+
+  allEvents.value.forEach((event) => {
+    const endedAt = event.ended_at;
+    if (endedAt) {
       const endedDay = dayjs(endedAt).format('YYYY-MM-DD');
       weekDates.value.forEach((date, index) => {
         if (endedDay === date) {
@@ -236,72 +346,145 @@ const processEventData = (events) => {
     }
   });
 
-  // 更新图表
-  updateCharts();
+  updateWeekChart();
 };
 
-// 更新图表
+// 处理最近30天告警数据
+const processMonthData = () => {
+  monthlyCounts.value = Array(30).fill(0);
+
+  allEvents.value.forEach((event) => {
+    const endedAt = event.ended_at;
+    if (endedAt) {
+      const endedDay = dayjs(endedAt).format('YYYY-MM-DD');
+      monthDates.value.forEach((date, index) => {
+        if (endedDay === date) {
+          monthlyCounts.value[index] += 1;
+        }
+      });
+    }
+  });
+
+  updateMonthChart();
+};
+
+// 更新今日图表
 const updateCharts = () => {
   if (chartInstanceToday.value) {
     chartInstanceToday.value.setOption({
-      series: [{ data: hourlyCounts.value }]
-    });
-  }
-
-  if (chartInstanceWeek.value) {
-    chartInstanceWeek.value.setOption({
-      series: [{ data: dailyCounts.value }]
+      series: [{ data: hourlyCounts.value }],
     });
   }
 };
 
+// 更新本周图表
+const updateWeekChart = () => {
+  if (chartInstanceWeek.value) {
+    chartInstanceWeek.value.setOption({
+      series: [{ data: dailyCounts.value }],
+    });
+  }
+};
+
+// 更新最近30天图表
+const updateMonthChart = () => {
+  if (chartInstanceMonth.value) {
+    chartInstanceMonth.value.setOption({
+      series: [{ data: monthlyCounts.value }],
+    });
+  }
+};
+
+// 处理选项卡切换
+const handleClick = async (tab) => {
+  if (tab.props.name === 'first') {
+    if (!isTodayChartInitialized) {
+      await nextTick();
+      initTodayChart();
+      isTodayChartInitialized = true;
+    }
+    delayInstanceToday();
+  } else if (tab.props.name === 'second') {
+    await processWeekData();
+    if (!isWeekChartInitialized) {
+      await nextTick();
+      initWeekChart();
+      isWeekChartInitialized = true;
+    }
+    delayInstanceWeek();
+  } else if (tab.props.name === 'third') {
+    await processMonthData();
+    if (!isMonthChartInitialized) {
+      await nextTick();
+      initMonthChart();
+      isMonthChartInitialized = true;
+    }
+    delayInstanceMonth();
+  }
+};
+
+// 窗口调整时重新渲染图表
+const delayInstanceToday = debounce(() => {
+  if (chartInstanceToday.value) {
+    chartInstanceToday.value.resize();
+    updateCharts();
+  }
+}, 300);
+
+const delayInstanceWeek = debounce(() => {
+  if (chartInstanceWeek.value) {
+    chartInstanceWeek.value.resize();
+    updateWeekChart();
+  }
+}, 300);
+
+const delayInstanceMonth = debounce(() => {
+  if (chartInstanceMonth.value) {
+    chartInstanceMonth.value.resize();
+    updateMonthChart();
+  }
+}, 300);
+
 // 组件挂载时调用
 onMounted(async () => {
   calculateWeekDates(); // 计算前7天日期
-
+  calculateMonthDates(); // 计算前30天日期
   const token = localStorage.getItem('alertToken');
-  await fetchAndProcessEvents(token);
+  await fetchAndProcessEvents(token); // 加载数据
 
-  // 初始化图表
   initTodayChart();
-  initWeekChart();
 });
 
-// 监听hourlyCounts，当其变化时更新今日图表
+// 监听数据变化，更新对应的图表
 watch(hourlyCounts, () => {
   if (chartInstanceToday.value) {
     chartInstanceToday.value.setOption({
-      series: [{
-        data: hourlyCounts.value
-      }]
+      series: [{ data: hourlyCounts.value }],
     });
   }
 });
 
-// 监听dailyCounts，当其变化时更新本周图表
 watch(dailyCounts, () => {
   if (chartInstanceWeek.value) {
     chartInstanceWeek.value.setOption({
-      series: [{
-        data: dailyCounts.value
-      }]
+      series: [{ data: dailyCounts.value }],
     });
   }
 });
 
-// tab点击处理函数
-const handleClick = (tab) => {
-  if (tab.name === 'first') {
-    initTodayChart();  // 切换到今日，重新加载今日图表
-  } else if (tab.name === 'second') {
-    initWeekChart();   // 切换到本周，重新加载本周图表
+watch(monthlyCounts, () => {
+  if (chartInstanceMonth.value) {
+    chartInstanceMonth.value.setOption({
+      series: [{ data: monthlyCounts.value }],
+    });
   }
-};
+});
+
 </script>
 
 <style scoped>
 .alert-card {
-  background-color: #2a3f54;
+  background-color: #304555;
   color: #fff;
   border-radius: 8px;
   padding: 0;
@@ -314,20 +497,15 @@ const handleClick = (tab) => {
   border-bottom: 1px solid #3a4b5c;
 }
 
-.alert-tabs {
-  margin-bottom: 0;
+.chart-container {
+  height: 350px;
 }
 
 ::v-deep .el-tabs__item {
   color: #fff;
 }
 
-.chart-container {
-  width: 780px;
-  height: 420px;
-}
-
-.el-tabs__active-bar {
-  background-color: #409EFF;
+::v-deep .el-tabs__item.is-active {
+  color: #2ea0ec;
 }
 </style>