diff --git a/src/components/StartTask.vue b/src/components/StartTask.vue
index 54cdd9b..d4c1cd4 100644
--- a/src/components/StartTask.vue
+++ b/src/components/StartTask.vue
@@ -1,11 +1,220 @@
 <script setup lang="ts">
+import { ref, computed, onMounted, onUnmounted } from 'vue';
+import {ElButton, ElMessage, ElMessageBox, ElProgress} from 'element-plus';
+import { useRoute } from "vue-router";
+import request from "@/utils/request";
 
+const route = useRoute();
+const taskNum = route.params.taskNum;
+
+const taskInfo = ref({
+  sessionNum: '',
+  sessionState: '--',
+  taskName: '',
+  taskNum: taskNum,
+  startTime: '',
+  endTime: '',
+  lastStartTime: '',
+  actualTime: 0,
+  effectiveTime: 0,
+  effectivenessRatio: '--',
+});
+
+const timerMinutes = ref(25);
+const timerSeconds = ref(0);
+const timerRunning = ref(false);
+let timerInterval: number;
+let timer : number;
+
+const currentCycle = computed(() => Math.floor(taskInfo.value.effectiveTime/60 / 25) + 1);
+const currentTime = ref(Date.now());
+
+const elapsedTime = computed(() => {
+  if (!taskInfo.value.startTime) return { hours: 0, minutes: 0, seconds: 0 };
+  const start = new Date(taskInfo.value.startTime).getTime();
+  const now = currentTime.value;
+  const diff = Math.max(Math.floor((now - start) / 1000), 0);
+  return {
+    hours: Math.floor(diff / 3600),
+    minutes: Math.floor((diff % 3600) / 60),
+    seconds: diff % 60,
+  };
+});
+
+const formatTime = (time: { hours: number; minutes: number; seconds: number }) => {
+  return `${time.hours}时${time.minutes}分${time.seconds}秒`;
+};
+
+const progress = computed(() => ((timerMinutes.value * 60 + timerSeconds.value) / (25 * 60)) * 100);
+
+const audio = new Audio('/resource/notification.mp3');
+
+const startTimer = async () => {
+  if ("PAUSED" === taskInfo.value.sessionState) {
+    await request.post(`/study-sessions/${taskInfo.value.sessionNum}/study-sessions/continue`, null, {params: null}).then(req => {
+      if (req.code === 200) {
+        ElMessage.success('任务开始');
+      }
+    });
+  }
+  timerRunning.value = true;
+
+  timerInterval = window.setInterval(() => {
+    if (timerRunning.value) {
+      if (timerSeconds.value === 0) {
+        if (timerMinutes.value === 0) {
+          endTimer();
+
+          // 弹窗 + 播放铃声
+          audio.loop = true; // 循环播放，避免弹窗没关闭铃声自动停
+          audio.play();
+
+          ElMessageBox.alert('本次番茄钟结束！', '提醒', {
+            confirmButtonText: '关闭铃声',
+            callback: () => {
+              audio.pause();
+              audio.currentTime = 0; // 重置音频进度
+              ElMessage.success('铃声已关闭');
+            }
+          });
+        } else {
+          timerMinutes.value--;
+          timerSeconds.value = 59;
+        }
+      } else {
+        timerSeconds.value--;
+      }
+    }else {
+      clearInterval(timerInterval);
+    }
+  }, 1000);
+};
+
+const stopTimer = async () => {
+  await request.post(`/study-sessions/${taskInfo.value.sessionNum}/study-sessions/pause`, null, {params:null}).then(req =>{
+    if (req.code === 200) {
+      ElMessage.success('任务暂停');
+    }
+  });
+  timerRunning.value = false;
+};
+
+const endTimer = async () => {
+  await request.post(`/study-sessions/${taskInfo.value.sessionNum}/study-sessions/ended`, {content:"测试关闭"}, {params:null}).then(req =>{
+    if (req.code === 200) {
+      ElMessage.success('任务结束');
+    }
+  });
+  clearInterval(timerInterval);
+  timerRunning.value = false;
+};
+
+const handleTimerException = async (adjustedEnd: Date) => {
+  await request.post(`/study-sessions/${taskInfo.value.sessionNum}/study-sessions/pause`, null, {
+    params: {
+      endTime: adjustedEnd.toISOString(),
+    }
+  });
+  ElMessage.warning('上次学习任务开始时间过长，未及时结束，有效时间仅增加25分钟');
+  // 重新加载数据
+  startOrContinueStudySession()
+
+};
+
+const initClocker = async () => {
+
+  const end = new Date(taskInfo.value.endTime).getTime();
+  const lastStart = new Date(taskInfo.value.lastStartTime).getTime();
+  const now = new Date().getTime();
+  let diff = Math.floor((now - lastStart) / 1000);
+  // 判断任务是否超时（状态为正在进行，且最后一次开始时间到现在超过25分钟）
+  console.log(new Date().toISOString())
+  if (taskInfo.value.sessionState === 'ONGOING' && now - lastStart > 25 * 60 * 1000) {
+    // 超时了，触发暂停
+    const adjustedEnd = new Date(lastStart + 25 * 60000);
+    await handleTimerException(adjustedEnd);
+    // 准备开始下一次倒计时
+    timerMinutes.value = 25;
+    timerSeconds.value = 0;
+  } else if (taskInfo.value.sessionState === 'ONGOING' ) {
+    // 没超时，恢复进度
+    timerMinutes.value = 25 - Math.floor(diff / 60);
+    timerSeconds.value = 60 - diff % 60;
+    startTimer();
+  } else {
+    // 准备开始下一次倒计时
+    timerMinutes.value = 25;
+    timerSeconds.value = 0;
+  }
+};
+
+const startOrContinueStudySession = () => {
+  request.get(`/tasks/${taskNum}/study-sessions/start-or-continue`, {})
+      .then(res => {
+        Object.assign(taskInfo.value, res.data);
+        initClocker();
+      })
+      .catch(err => {
+        ElMessage.error(err.message);
+      });
+};
+
+onMounted(() => {
+  startOrContinueStudySession();
+  timer = setInterval(() => {
+    currentTime.value = Date.now();
+  }, 1000);
+});
+
+onUnmounted(() => {
+  clearInterval(timerInterval)
+  clearInterval(timer);
+});
 </script>
 
 <template>
-任务开始页面
+  <div class="task-container">
+    <div class="task-info">
+      <p>当前任务【{{ taskInfo.taskName }}】</p>
+      <p>当前循环：{{ currentCycle }}</p>
+      <p>有效时间：{{ taskInfo.effectiveTime / 60 }}分钟</p>
+      <p>本次运行时间：{{ formatTime(elapsedTime) }}</p>
+    </div>
+
+    <div class="timer-section">
+      <el-progress type="circle" :percentage="progress" :width="200">
+        <div>{{ timerMinutes.toString().padStart(2, '0') }} : {{ timerSeconds.toString().padStart(2, '0') }}</div>
+      </el-progress>
+    </div>
+
+    <div class="actions">
+      <el-button @click="startTimer" :disabled="timerRunning">开始</el-button>
+      <el-button @click="stopTimer" :disabled = "!timerRunning">暂停</el-button>
+      <el-button @click="endTimer" >结束</el-button>
+    </div>
+  </div>
 </template>
 
 <style scoped>
+.task-container {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  margin: 20px;
+}
 
-</style>
\ No newline at end of file
+.task-info {
+  font-size: 18px;
+  margin-bottom: 30px;
+}
+
+.timer-section {
+  margin: 20px;
+}
+
+.actions {
+  display: flex;
+  gap: 10px;
+}
+</style>
diff --git a/src/components/Study.vue b/src/components/Study.vue
index 259e745..ab1ff95 100644
--- a/src/components/Study.vue
+++ b/src/components/Study.vue
@@ -15,7 +15,7 @@ const fetchTasks = () => {
         tasks.splice(0, tasks.length, ...res.data.records.map((record: any) => ({
           title: record.taskName,
           description: record.taskDescription || '',
-          progress: record.lastLearningStatus || '未开始',
+          lastLearningStatus: record.lastLearningStatus || '未开始',
           priority: Math.round(record.taskPriority),
           taskNum: record.taskNum,
           taskId: record.id,
@@ -25,7 +25,7 @@ const fetchTasks = () => {
 };
 
 const startTask = () => {
-  router.push("/start-task")
+  router.push({name:'start-task',params:{taskNum:selectedTask.value.taskNum}});
   console.log('任务已开始：', selectedTask.value);
 };
 
diff --git a/src/resource/notification.mp3 b/src/resource/notification.mp3
new file mode 100644
index 0000000..7128476
Binary files /dev/null and b/src/resource/notification.mp3 differ
diff --git a/src/router/index.ts b/src/router/index.ts
index 136f84d..6b87691 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -30,7 +30,8 @@ const router = createRouter({
             component: Review
         },
         {
-            path:'/start-task',
+            path:'/start-task/:taskNum',
+            name:'start-task',
             component: StartTask
         },
         {
diff --git a/src/utils/request.ts b/src/utils/request.ts
index 205bbe9..211426d 100644
--- a/src/utils/request.ts
+++ b/src/utils/request.ts
@@ -34,11 +34,20 @@ const get = (url: string, params: {}) => {
         .catch(handleError);
 };
 
-const post = (url: string, data: any) => {
-    console.log("开始POST请求", basic_url + url, "参数：", data);
-    return axiosInstance.post(url, data)
-        .then(validateResponse)
-        .catch(handleError);
+const post = (url: string, data: any = null, config: any = {}) => {
+    console.log("开始POST请求", url, "参数：", data, "配置：", config);
+
+    if (config.params) {
+        // 如果传入 config.params，则作为 URL 参数
+        return axiosInstance.post(url, data, { params: config.params })
+            .then(validateResponse)
+            .catch(handleError);
+    } else {
+        // 默认 POST JSON
+        return axiosInstance.post(url, data)
+            .then(validateResponse)
+            .catch(handleError);
+    }
 };
 
 const put = (url: string, data: any) => {