diff --git a/config.example.yaml b/config.example.yaml
index 57e2d94..a4e1610 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -98,6 +98,10 @@ jobs:
     enabled: true
     interval: 24h
     completed_retention: 168h
+  acp_events_purge:
+    enabled: true
+    interval: 24h
+    retention: 168h          # 7 天
 
 # 通知通道配置
 notify:
diff --git a/internal/app/app.go b/internal/app/app.go
index 1b4d1ef..944ca2e 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -373,6 +373,8 @@ func New(ctx context.Context, cfg *config.Config, dist embed.FS) (*App, error) {
 		log)
 	jobReaperRunner := runners.NewJobReaper(jobsRepo, cfg.Jobs.JobReaper.LeaseTimeout, log)
 	jobPurgeRunner := runners.NewJobPurge(jobsRepo, cfg.Jobs.JobPurge.CompletedRetention, log)
+	acpEventsPurgeRunner := runners.NewAcpEventsPurge(
+		acpEventsPurgeAdapter{repo: acpRepo}, cfg.Jobs.AcpEventsPurge.Retention, log)
 
 	deadLetterFn := func(ctx context.Context, job jobs.Job, herr error) {
 		errMsg := herr.Error()
@@ -443,6 +445,11 @@ func New(ctx context.Context, cfg *config.Config, dist embed.FS) (*App, error) {
 			Interval:           cfg.Jobs.JobPurge.Interval,
 			CompletedRetention: cfg.Jobs.JobPurge.CompletedRetention,
 		},
+		AcpEventsPurge: jobs.AcpEventsPurgeConfig{
+			Enabled:   cfg.Jobs.AcpEventsPurge.Enabled,
+			Interval:  cfg.Jobs.AcpEventsPurge.Interval,
+			Retention: cfg.Jobs.AcpEventsPurge.Retention,
+		},
 	}, jobs.ModuleDeps{
 		Repo: jobsRepo,
 		Handlers: map[jobs.JobType]jobs.Handler{
@@ -454,6 +461,7 @@ func New(ctx context.Context, cfg *config.Config, dist embed.FS) (*App, error) {
 			"attachment_cleanup": attCleanupRunner.Run,
 			"job_reaper":         jobReaperRunner.Run,
 			"job_purge":          jobPurgeRunner.Run,
+			"acp_events_purge":   acpEventsPurgeRunner.Run,
 		},
 		Clock:         clock.Real(),
 		Log:           log,
@@ -803,3 +811,11 @@ type dispatcherAdapter struct{ d *notify.Dispatcher }
 func (a dispatcherAdapter) Dispatch(ctx context.Context, msg notify.Message) error {
 	return a.d.Dispatch(ctx, msg)
 }
+
+// acpEventsPurgeAdapter exposes acp.Repository.PurgeEventsBefore as the narrow
+// interface required by runners.AcpEventsPurge.
+type acpEventsPurgeAdapter struct{ repo acp.Repository }
+
+func (a acpEventsPurgeAdapter) PurgeEventsBefore(ctx context.Context, before time.Time) (int64, error) {
+	return a.repo.PurgeEventsBefore(ctx, before)
+}
diff --git a/internal/config/config.go b/internal/config/config.go
index 7c59fa6..e63440a 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -120,6 +120,7 @@ type JobsConfig struct {
 	AttachmentCleanup AttachmentCleanupCfg `mapstructure:"attachment_cleanup"`
 	JobReaper         JobReaperCfg         `mapstructure:"job_reaper"`
 	JobPurge          JobPurgeCfg          `mapstructure:"job_purge"`
+	AcpEventsPurge    AcpEventsPurgeCfg    `mapstructure:"acp_events_purge"`
 }
 
 type RunnerCfg struct {
@@ -152,6 +153,12 @@ type JobPurgeCfg struct {
 	CompletedRetention time.Duration `mapstructure:"completed_retention"`
 }
 
+type AcpEventsPurgeCfg struct {
+	Enabled   bool          `mapstructure:"enabled"`
+	Interval  time.Duration `mapstructure:"interval"`
+	Retention time.Duration `mapstructure:"retention"`
+}
+
 // NotifyConfig 是 notify 模块的可选外发通道配置。当前仅 webhook。
 type NotifyConfig struct {
 	Webhook WebhookCfg `mapstructure:"webhook"`
@@ -227,6 +234,9 @@ func Load(configFile string) (*Config, error) {
 	v.SetDefault("jobs.job_purge.enabled", true)
 	v.SetDefault("jobs.job_purge.interval", "24h")
 	v.SetDefault("jobs.job_purge.completed_retention", "168h")
+	v.SetDefault("jobs.acp_events_purge.enabled", true)
+	v.SetDefault("jobs.acp_events_purge.interval", "24h")
+	v.SetDefault("jobs.acp_events_purge.retention", "168h")
 	v.SetDefault("notify.webhook.enabled", false)
 	v.SetDefault("notify.webhook.timeout", "10s")
 	v.SetDefault("acp.enabled", true)
diff --git a/internal/jobs/domain.go b/internal/jobs/domain.go
index 193b0ed..d9bbe79 100644
--- a/internal/jobs/domain.go
+++ b/internal/jobs/domain.go
@@ -120,6 +120,13 @@ type JobPurgeConfig struct {
 	CompletedRetention time.Duration
 }
 
+// AcpEventsPurgeConfig extends RunnerConfig with acp_events retention.
+type AcpEventsPurgeConfig struct {
+	Enabled   bool
+	Interval  time.Duration
+	Retention time.Duration
+}
+
 // Config is the full jobs.Module configuration.
 type Config struct {
 	Enabled           bool
@@ -130,4 +137,5 @@ type Config struct {
 	AttachmentCleanup AttachmentCleanupConfig
 	JobReaper         JobReaperConfig
 	JobPurge          JobPurgeConfig
+	AcpEventsPurge    AcpEventsPurgeConfig
 }
diff --git a/internal/jobs/module.go b/internal/jobs/module.go
index 34d1dab..f3c5c1d 100644
--- a/internal/jobs/module.go
+++ b/internal/jobs/module.go
@@ -129,6 +129,8 @@ func scheduleEntry(cfg Config, name string) (schedEntry, bool) {
 		return schedEntry{cfg.JobReaper.Interval, cfg.JobReaper.Enabled}, true
 	case "job_purge":
 		return schedEntry{cfg.JobPurge.Interval, cfg.JobPurge.Enabled}, true
+	case "acp_events_purge":
+		return schedEntry{cfg.AcpEventsPurge.Interval, cfg.AcpEventsPurge.Enabled}, true
 	}
 	return schedEntry{0, false}, false
 }