diff --git a/internal/infra/models/plan.go b/internal/infra/models/plan.go
index 38d98fc..1d46c4c 100644
--- a/internal/infra/models/plan.go
+++ b/internal/infra/models/plan.go
@@ -44,6 +44,7 @@ const (
 	PlanStatusDisabled PlanStatus = 0 // 禁用计划
 	PlanStatusEnabled  PlanStatus = 1 // 启用计划
 	PlanStatusStopeed  PlanStatus = 2 // 执行完毕
+	PlanStatusFailed   PlanStatus = 3 // 执行失败
 )
 
 // Plan 代表系统中的一个计划，可以包含子计划或任务
diff --git a/internal/infra/repository/execution_log_repository.go b/internal/infra/repository/execution_log_repository.go
index 701f680..d804247 100644
--- a/internal/infra/repository/execution_log_repository.go
+++ b/internal/infra/repository/execution_log_repository.go
@@ -36,6 +36,18 @@ type ExecutionLogRepository interface {
 	FailAllIncompletePlanExecutionLogs() error
 	// CancelAllIncompleteTaskExecutionLogs 将所有状态为 ExecutionStatusStarted 和 ExecutionStatusWaiting 的任务状态修改为 ExecutionStatusCancelled
 	CancelAllIncompleteTaskExecutionLogs() error
+
+	// FindPlanExecutionLogByID 根据ID查找计划执行日志
+	FindPlanExecutionLogByID(id uint) (*models.PlanExecutionLog, error)
+
+	// CountIncompleteTasksByPlanLogID 计算一个计划执行中未完成的任务数量
+	CountIncompleteTasksByPlanLogID(planLogID uint) (int64, error)
+
+	// FailPlanExecution 将指定的计划执行标记为失败
+	FailPlanExecution(planLogID uint, errorMessage string) error
+
+	// CancelIncompleteTasksByPlanLogID 取消一个计划执行中的所有未完成任务
+	CancelIncompleteTasksByPlanLogID(planLogID uint, reason string) error
 }
 
 // gormExecutionLogRepository 是使用 GORM 的具体实现。
@@ -163,3 +175,46 @@ func (r *gormExecutionLogRepository) CancelAllIncompleteTaskExecutionLogs() erro
 		Where("status IN (?, ?)", models.ExecutionStatusStarted, models.ExecutionStatusWaiting).
 		Updates(map[string]interface{}{"status": models.ExecutionStatusCancelled, "ended_at": time.Now(), "output": "系统中断"}).Error
 }
+
+// FindPlanExecutionLogByID 根据ID查找计划执行日志
+func (r *gormExecutionLogRepository) FindPlanExecutionLogByID(id uint) (*models.PlanExecutionLog, error) {
+	var log models.PlanExecutionLog
+	err := r.db.First(&log, id).Error
+	if err != nil {
+		return nil, err
+	}
+	return &log, nil
+}
+
+// CountIncompleteTasksByPlanLogID 计算一个计划执行中未完成的任务数量
+func (r *gormExecutionLogRepository) CountIncompleteTasksByPlanLogID(planLogID uint) (int64, error) {
+	var count int64
+	err := r.db.Model(&models.TaskExecutionLog{}).
+		Where("plan_execution_log_id = ? AND status IN (?, ?)",
+			planLogID, models.ExecutionStatusWaiting, models.ExecutionStatusStarted).
+		Count(&count).Error
+	return count, err
+}
+
+// FailPlanExecution 将指定的计划执行标记为失败
+func (r *gormExecutionLogRepository) FailPlanExecution(planLogID uint, errorMessage string) error {
+	return r.db.Model(&models.PlanExecutionLog{}).
+		Where("id = ?", planLogID).
+		Updates(map[string]interface{}{
+			"status":   models.ExecutionStatusFailed,
+			"error":    errorMessage,
+			"ended_at": time.Now(),
+		}).Error
+}
+
+// CancelIncompleteTasksByPlanLogID 取消一个计划执行中的所有未完成任务
+func (r *gormExecutionLogRepository) CancelIncompleteTasksByPlanLogID(planLogID uint, reason string) error {
+	return r.db.Model(&models.TaskExecutionLog{}).
+		Where("plan_execution_log_id = ? AND status IN (?, ?)",
+			planLogID, models.ExecutionStatusWaiting, models.ExecutionStatusStarted).
+		Updates(map[string]interface{}{
+			"status":   models.ExecutionStatusCancelled,
+			"output":   reason,
+			"ended_at": time.Now(),
+		}).Error
+}
diff --git a/internal/infra/repository/pending_task_repository.go b/internal/infra/repository/pending_task_repository.go
index ecc954c..786c361 100644
--- a/internal/infra/repository/pending_task_repository.go
+++ b/internal/infra/repository/pending_task_repository.go
@@ -31,6 +31,9 @@ type PendingTaskRepository interface {
 	RequeueTask(originalPendingTask *models.PendingTask) error
 	// FindPendingTasksByTaskLogIDs 根据 TaskExecutionLogID 列表查找对应的待执行任务
 	FindPendingTasksByTaskLogIDs(taskLogIDs []uint) ([]models.PendingTask, error)
+
+	// DeletePendingTasksByPlanLogID 删除与指定计划执行日志ID相关的所有待执行任务
+	DeletePendingTasksByPlanLogID(planLogID uint) error
 }
 
 // gormPendingTaskRepository 是使用 GORM 的具体实现。
@@ -164,3 +167,12 @@ func (r *gormPendingTaskRepository) FindPendingTasksByTaskLogIDs(taskLogIDs []ui
 	err := r.db.Where("task_execution_log_id IN ?", taskLogIDs).Find(&pendingTasks).Error
 	return pendingTasks, err
 }
+
+// DeletePendingTasksByPlanLogID 删除与指定计划执行日志ID相关的所有待执行任务
+func (r *gormPendingTaskRepository) DeletePendingTasksByPlanLogID(planLogID uint) error {
+	// 使用子查询找到所有与 planLogID 相关的 task_execution_log_id
+	subQuery := r.db.Model(&models.TaskExecutionLog{}).Select("id").Where("plan_execution_log_id = ?", planLogID)
+
+	// 使用子查询的结果来删除待执行任务
+	return r.db.Where("task_execution_log_id IN (?)", subQuery).Delete(&models.PendingTask{}).Error
+}
diff --git a/internal/infra/repository/plan_repository.go b/internal/infra/repository/plan_repository.go
index e3367bf..6dbe320 100644
--- a/internal/infra/repository/plan_repository.go
+++ b/internal/infra/repository/plan_repository.go
@@ -46,8 +46,8 @@ type PlanRepository interface {
 	FindPlanAnalysisTaskByParamsPlanID(paramsPlanID uint) (*models.Task, error)
 	// FindRunnablePlans 获取所有应执行的计划
 	FindRunnablePlans() ([]*models.Plan, error)
-	// FindDisabledAndStoppedPlans 获取所有已禁用或已停止的计划
-	FindDisabledAndStoppedPlans() ([]*models.Plan, error)
+	// FindInactivePlans 获取所有已禁用或已停止的计划
+	FindInactivePlans() ([]*models.Plan, error)
 	// FindPlanAnalysisTaskByPlanID 根据 PlanID 找到其关联的 'plan_analysis' 任务
 	FindPlanAnalysisTaskByPlanID(planID uint) (*models.Task, error)
 
@@ -600,10 +600,10 @@ func (r *gormPlanRepository) FindRunnablePlans() ([]*models.Plan, error) {
 	return plans, err
 }
 
-func (r *gormPlanRepository) FindDisabledAndStoppedPlans() ([]*models.Plan, error) {
+func (r *gormPlanRepository) FindInactivePlans() ([]*models.Plan, error) {
 	var plans []*models.Plan
 	err := r.db.
-		Where("status = ? OR status = ?", models.PlanStatusDisabled, models.PlanStatusStopeed).
+		Where("status != ?", models.PlanStatusEnabled).
 		Find(&plans).Error
 	return plans, err
 }