diff --git a/backend/internal/modules/listing/handler_error.go b/backend/internal/modules/listing/handler_error.go
index 1ee0e27..5a68bf3 100644
--- a/backend/internal/modules/listing/handler_error.go
+++ b/backend/internal/modules/listing/handler_error.go
@@ -2,8 +2,10 @@ package listing
 
 import (
 	"errors"
+	"fmt"
 	"net/http"
 	"strconv"
+	"time"
 
 	"hfb_sys/backend/pkg/response"
 
@@ -56,6 +58,8 @@ func writeListingError(c *gin.Context, err error) {
 		response.BadRequest(c, "发布信息不符合规则")
 	case errors.Is(err, ErrListingLocked):
 		response.Error(c, http.StatusConflict, "listing_locked", "当前发布不可修改")
+	case errors.Is(err, ErrPublishCooldown):
+		response.Error(c, http.StatusTooManyRequests, "publish_cooldown", publishCooldownMessage(err))
 	case IsNotFound(err):
 		response.Error(c, http.StatusNotFound, "not_found", "发布不存在")
 	default:
@@ -72,3 +76,25 @@ func isUploadValidationError(err error) bool {
 	var validationErr UploadValidationError
 	return errors.As(err, &validationErr)
 }
+
+func publishCooldownMessage(err error) string {
+	var cooldownErr PublishCooldownError
+	if !errors.As(err, &cooldownErr) {
+		return "发布太频繁，请稍后再试"
+	}
+	cooldownMinutes := ceilDuration(cooldownErr.Cooldown, time.Minute)
+	if cooldownMinutes <= 0 {
+		return "发布太频繁，请稍后再试"
+	}
+	if cooldownErr.Remaining < time.Minute {
+		return fmt.Sprintf("发布太频繁，每%d分钟只能发布一个账号，请%d秒后再试", cooldownMinutes, ceilDuration(cooldownErr.Remaining, time.Second))
+	}
+	return fmt.Sprintf("发布太频繁，每%d分钟只能发布一个账号，请%d分钟后再试", cooldownMinutes, ceilDuration(cooldownErr.Remaining, time.Minute))
+}
+
+func ceilDuration(value time.Duration, unit time.Duration) int {
+	if value <= 0 || unit <= 0 {
+		return 0
+	}
+	return int((value + unit - time.Nanosecond) / unit)
+}
diff --git a/backend/internal/modules/listing/mutation.go b/backend/internal/modules/listing/mutation.go
index fa766ee..5df0ac6 100644
--- a/backend/internal/modules/listing/mutation.go
+++ b/backend/internal/modules/listing/mutation.go
@@ -11,12 +11,17 @@ import (
 
 	"gorm.io/datatypes"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 )
 
-func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateRequest, reviewRequired bool) (*ListingDTO, error) {
+func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateRequest, reviewRequired bool, publishCooldown time.Duration) (*ListingDTO, error) {
 	var dto *ListingDTO
 	err := r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		listingNo, err := r.nextListingNo(tx, time.Now())
+		now := time.Now()
+		if err := r.ensureCreateCooldown(tx, ownerID, publishCooldown, now); err != nil {
+			return err
+		}
+		listingNo, err := r.nextListingNo(tx, now)
 		if err != nil {
 			return err
 		}
@@ -77,6 +82,33 @@ func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateReque
 	return dto, err
 }
 
+func (r *Repository) ensureCreateCooldown(tx *gorm.DB, ownerID uint64, cooldown time.Duration, now time.Time) error {
+	if cooldown <= 0 {
+		return nil
+	}
+
+	var user model.User
+	if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).Select("id").First(&user, ownerID).Error; err != nil {
+		return err
+	}
+
+	var latest model.RentalListing
+	err := tx.Where("owner_id = ?", ownerID).
+		Order("created_at DESC, id DESC").
+		First(&latest).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil
+		}
+		return err
+	}
+	remaining := latest.CreatedAt.Add(cooldown).Sub(now)
+	if remaining > 0 {
+		return PublishCooldownError{Cooldown: cooldown, Remaining: remaining}
+	}
+	return nil
+}
+
 type externalUploadCreate struct {
 	UploaderName     string
 	ClientUploadTime *time.Time
diff --git a/backend/internal/modules/listing/service.go b/backend/internal/modules/listing/service.go
index 15ac1ea..16154a3 100644
--- a/backend/internal/modules/listing/service.go
+++ b/backend/internal/modules/listing/service.go
@@ -4,12 +4,14 @@ import (
 	"context"
 	"errors"
 	"strings"
+	"time"
 )
 
 var (
 	ErrDependencyUnavailable = errors.New("dependency unavailable")
 	ErrInvalidInput          = errors.New("invalid listing input")
 	ErrListingLocked         = errors.New("listing locked")
+	ErrPublishCooldown       = errors.New("listing publish cooldown")
 	ErrMissingTitle          = errors.New("missing listing title")
 	ErrMissingServerRegion   = errors.New("missing server region")
 	ErrInvalidPrice          = errors.New("invalid listing price")
@@ -38,13 +40,28 @@ type ConfigReader interface {
 }
 
 const (
-	reviewRequiredConfigKey = "listing.review_required"
-	publishOptionsConfigKey = "listing.publish_options"
-	defaultFireLevelMin     = 38
-	maxExternalUploadItems  = 10
-	defaultUploadScreenshot = "/api/listings/default-upload-screenshot"
+	reviewRequiredConfigKey       = "listing.review_required"
+	publishOptionsConfigKey       = "listing.publish_options"
+	publishCooldownMinutesKey     = "listing.publish_cooldown_minutes"
+	defaultFireLevelMin           = 38
+	defaultPublishCooldownMinutes = 5
+	maxExternalUploadItems        = 10
+	defaultUploadScreenshot       = "/api/listings/default-upload-screenshot"
 )
 
+type PublishCooldownError struct {
+	Cooldown  time.Duration
+	Remaining time.Duration
+}
+
+func (e PublishCooldownError) Error() string {
+	return ErrPublishCooldown.Error()
+}
+
+func (e PublishCooldownError) Is(target error) bool {
+	return target == ErrPublishCooldown
+}
+
 type FireLevelTooLowError struct {
 	Min int
 }
diff --git a/backend/internal/modules/listing/service_config.go b/backend/internal/modules/listing/service_config.go
index 0982ae2..061fe91 100644
--- a/backend/internal/modules/listing/service_config.go
+++ b/backend/internal/modules/listing/service_config.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"strconv"
 	"strings"
+	"time"
 )
 
 func (s *Service) reviewRequired(ctx context.Context) (bool, error) {
@@ -42,3 +43,21 @@ func (s *Service) publishRules(ctx context.Context) (publishRules, error) {
 	}
 	return rules, nil
 }
+
+func (s *Service) publishCooldown(ctx context.Context) (time.Duration, error) {
+	if s.config == nil {
+		return time.Duration(defaultPublishCooldownMinutes) * time.Minute, nil
+	}
+	value, err := s.config.FindValue(ctx, publishCooldownMinutesKey)
+	if err != nil {
+		return 0, err
+	}
+	minutes, err := strconv.Atoi(strings.TrimSpace(value))
+	if err != nil {
+		return time.Duration(defaultPublishCooldownMinutes) * time.Minute, nil
+	}
+	if minutes <= 0 {
+		return 0, nil
+	}
+	return time.Duration(minutes) * time.Minute, nil
+}
diff --git a/backend/internal/modules/listing/service_mutation.go b/backend/internal/modules/listing/service_mutation.go
index fd71d84..a7ed059 100644
--- a/backend/internal/modules/listing/service_mutation.go
+++ b/backend/internal/modules/listing/service_mutation.go
@@ -21,11 +21,15 @@ func (s *Service) Create(ctx context.Context, ownerID uint64, req CreateRequest)
 	if err := validateRequiredOnlineTime(req); err != nil {
 		return nil, err
 	}
+	cooldown, err := s.publishCooldown(ctx)
+	if err != nil {
+		return nil, err
+	}
 	reviewRequired, err := s.reviewRequired(ctx)
 	if err != nil {
 		return nil, err
 	}
-	return s.repo.Create(ctx, ownerID, req, reviewRequired)
+	return s.repo.Create(ctx, ownerID, req, reviewRequired, cooldown)
 }
 
 func (s *Service) Update(ctx context.Context, ownerID uint64, id uint64, req UpdateRequest) (*ListingDTO, error) {
diff --git a/backend/internal/modules/listing/service_test.go b/backend/internal/modules/listing/service_test.go
index d457a2e..0160371 100644
--- a/backend/internal/modules/listing/service_test.go
+++ b/backend/internal/modules/listing/service_test.go
@@ -1,13 +1,22 @@
 package listing
 
 import (
+	"context"
 	"encoding/json"
+	"errors"
 	"testing"
+	"time"
 
 	"hfb_sys/backend/internal/database"
 	"hfb_sys/backend/internal/model"
 )
 
+type stubConfigReader map[string]string
+
+func (s stubConfigReader) FindValue(_ context.Context, key string) (string, error) {
+	return s[key], nil
+}
+
 func TestConsumableValueOnlyCountsChargedResources(t *testing.T) {
 	value := consumableValue(map[string]any{
 		"resources": []any{
@@ -108,6 +117,62 @@ func TestCreateRequiresPublishAgreements(t *testing.T) {
 	}
 }
 
+func TestPublishCooldownUsesConfiguredMinutes(t *testing.T) {
+	service := NewService(nil, stubConfigReader{publishCooldownMinutesKey: "2"})
+
+	cooldown, err := service.publishCooldown(t.Context())
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	if cooldown != 2*time.Minute {
+		t.Fatalf("expected 2m cooldown, got %s", cooldown)
+	}
+}
+
+func TestPublishCooldownCanBeDisabled(t *testing.T) {
+	service := NewService(nil, stubConfigReader{publishCooldownMinutesKey: "0"})
+
+	cooldown, err := service.publishCooldown(t.Context())
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+	if cooldown != 0 {
+		t.Fatalf("expected disabled cooldown, got %s", cooldown)
+	}
+}
+
+func TestRepositoryCreateRejectsRecentOwnerPublish(t *testing.T) {
+	db := database.NewTestDB()
+	if err := db.AutoMigrate(&model.User{}, &model.GameAccount{}, &model.RentalListing{}); err != nil {
+		t.Fatalf("failed to migrate test db: %v", err)
+	}
+	user := model.User{Phone: "18800000000", RealnameStatus: "verified", Status: "active"}
+	if err := db.Create(&user).Error; err != nil {
+		t.Fatalf("failed to create user: %v", err)
+	}
+	latestCreatedAt := time.Now().Add(-2 * time.Minute)
+	if err := db.Create(&model.RentalListing{
+		ListingNo:    "202606270001",
+		AccountID:    1,
+		OwnerID:      user.ID,
+		Status:       "published",
+		CreatedAt:    latestCreatedAt,
+		ReviewStatus: "approved",
+	}).Error; err != nil {
+		t.Fatalf("failed to create latest listing: %v", err)
+	}
+
+	repo := NewRepository(db, nil)
+	_, err := repo.Create(t.Context(), user.ID, validCreateRequest(), false, 5*time.Minute)
+	var cooldownErr PublishCooldownError
+	if !errors.As(err, &cooldownErr) {
+		t.Fatalf("expected PublishCooldownError, got %v", err)
+	}
+	if cooldownErr.Remaining <= 0 {
+		t.Fatalf("expected positive remaining cooldown, got %s", cooldownErr.Remaining)
+	}
+}
+
 func TestRepositoryUpdateAllowsOfflineListingResubmit(t *testing.T) {
 	db := database.NewTestDB()
 	if err := db.AutoMigrate(&model.GameAccount{}, &model.RentalListing{}); err != nil {
@@ -127,7 +192,7 @@ func TestRepositoryUpdateAllowsOfflineListingResubmit(t *testing.T) {
 			"online_time": map[string]any{"start": "09:00", "end": "23:00"},
 		},
 	}
-	created, err := repo.Create(t.Context(), 1, req, false)
+	created, err := repo.Create(t.Context(), 1, req, false, 0)
 	if err != nil {
 		t.Fatalf("failed to create listing: %v", err)
 	}
@@ -148,6 +213,22 @@ func TestRepositoryUpdateAllowsOfflineListingResubmit(t *testing.T) {
 	}
 }
 
+func validCreateRequest() CreateRequest {
+	return CreateRequest{
+		Title:             "测试账号",
+		ServerRegion:      "QQ",
+		LoginPlatform:     "QQ账号密码",
+		RankLevel:         "黑鹰",
+		HafCoinAmount:     100000000,
+		PriceCent:         10000,
+		DepositAmountCent: 50000,
+		ScreenshotURLS:    []string{"https://example.com/a.png"},
+		AssetSummary: map[string]any{
+			"online_time": map[string]any{"start": "09:00", "end": "23:00"},
+		},
+	}
+}
+
 func TestApplySellerListingPriceUsesSellerTotalPrice(t *testing.T) {
 	item := &ListingDTO{
 		PriceCent: 23800,
diff --git a/backend/internal/modules/systemconfig/repository.go b/backend/internal/modules/systemconfig/repository.go
index 0f51bde..82c1fd9 100644
--- a/backend/internal/modules/systemconfig/repository.go
+++ b/backend/internal/modules/systemconfig/repository.go
@@ -32,6 +32,7 @@ var defaultConfigs = []defaultConfig{
 	{Key: "order.pending_payment_timeout_minutes", Value: "15", Description: "订单待支付超时取消分钟数"},
 	{Key: "order.return_overdue_grace_minutes", Value: "10", Description: "预计截止后结账宽限分钟数"},
 	{Key: "listing.review_required", Value: "false", Description: "发布账号是否需要后台人工审核"},
+	{Key: "listing.publish_cooldown_minutes", Value: "5", Description: "同一用户两次新增发布账号的最小间隔分钟数（0 表示关闭）"},
 	{Key: listingPublishAgreementsConfigKey, Value: defaultListingPublishAgreementsConfigValue(), Description: "发布账号前协议配置 JSON"},
 	{Key: orderAgreementsConfigKey, Value: defaultOrderAgreementsConfigValue(), Description: "下单前协议配置 JSON"},
 	{Key: postRentalNoticeConfigKey, Value: defaultPostRentalNoticeConfigValue(), Description: "租后须知配置 JSON"},
@@ -60,6 +61,7 @@ var adminVisibleConfigKeys = []string{
 	"integration.paddle_ocr_model",
 	"integration.paddle_ocr_token",
 	"listing.publish_agreements",
+	"listing.publish_cooldown_minutes",
 	"listing.publish_options",
 	"listing.review_required",
 	"listing.sale_price_config",
diff --git a/backend/internal/modules/systemconfig/service_update.go b/backend/internal/modules/systemconfig/service_update.go
index 317a3a8..0873097 100644
--- a/backend/internal/modules/systemconfig/service_update.go
+++ b/backend/internal/modules/systemconfig/service_update.go
@@ -2,6 +2,8 @@ package systemconfig
 
 import (
 	"context"
+	"strconv"
+	"strings"
 )
 
 func (s *Service) Update(ctx context.Context, actorID uint64, key string, req UpdateRequest, meta AuditMeta) (*ConfigDTO, error) {
@@ -11,5 +13,11 @@ func (s *Service) Update(ctx context.Context, actorID uint64, key string, req Up
 	if key == "" || (req.Value == "" && key != "integration.paddle_ocr_token") {
 		return nil, ErrInvalidConfig
 	}
+	if key == "listing.publish_cooldown_minutes" {
+		minutes, err := strconv.Atoi(strings.TrimSpace(req.Value))
+		if err != nil || minutes < 0 {
+			return nil, ErrInvalidConfig
+		}
+	}
 	return s.repo.Update(ctx, actorID, key, req, meta)
 }
diff --git a/backend/migrations/000017_listing_publish_cooldown.sql b/backend/migrations/000017_listing_publish_cooldown.sql
new file mode 100644
index 0000000..675abbf
--- /dev/null
+++ b/backend/migrations/000017_listing_publish_cooldown.sql
@@ -0,0 +1,16 @@
+-- +goose Up
+-- +goose StatementBegin
+
+INSERT INTO system_configs (`key`, `value`, description) VALUES
+  ('listing.publish_cooldown_minutes', '5', '同一用户两次新增发布账号的最小间隔分钟数（0 表示关闭）')
+ON DUPLICATE KEY UPDATE
+  description = VALUES(description);
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+DELETE FROM system_configs WHERE `key` = 'listing.publish_cooldown_minutes';
+
+-- +goose StatementEnd
diff --git a/frontend/src/features/admin/views/AdminSystemConfigsView.vue b/frontend/src/features/admin/views/AdminSystemConfigsView.vue
index e375f39..97035b7 100644
--- a/frontend/src/features/admin/views/AdminSystemConfigsView.vue
+++ b/frontend/src/features/admin/views/AdminSystemConfigsView.vue
@@ -81,6 +81,9 @@ const publishConfig = computed(
 const salePriceConfig = computed(
   () => configs.value.find(item => item.key === 'listing.sale_price_config') || null
 )
+const listingPublishCooldownConfig = computed(
+  () => configs.value.find(item => item.key === 'listing.publish_cooldown_minutes') || null
+)
 const homeAnnouncementsConfig = computed(
   () => configs.value.find(item => item.key === 'mobile.home_announcements') || null
 )
@@ -128,6 +131,7 @@ const regularConfigs = computed(() =>
     item =>
       item.key !== 'listing.publish_options' &&
       item.key !== 'listing.sale_price_config' &&
+      item.key !== 'listing.publish_cooldown_minutes' &&
       item.key !== 'mobile.home_announcements' &&
       item.key !== 'mobile.home_banners' &&
       item.key !== 'listing.publish_agreements' &&
@@ -341,6 +345,14 @@ function formatHomeConfigStatus(row: SystemConfig | null, fallback: string) {
   return formatDateTime(row.updated_at, fallback)
 }
 
+function formatPublishCooldown(value: string) {
+  const trimmed = value.trim()
+  if (!/^\d+$/.test(trimmed)) return '配置异常'
+  const minutes = Number(trimmed)
+  if (minutes === 0) return '已关闭'
+  return `${minutes} 分钟`
+}
+
 function formatConfigValue(row: SystemConfig) {
   if (row.key.includes('token')) {
     return row.value.trim() ? '已配置' : '未配置'
@@ -398,6 +410,41 @@ function formatConfigValue(row: SystemConfig) {
       </div>
     </section>
 
+    <section v-if="listingPublishCooldownConfig" class="publish-config-panel">
+      <div class="publish-config-main">
+        <div>
+          <p class="eyebrow">Publish Guard</p>
+          <h2>发布频率限制</h2>
+          <span>限制同一用户新增发布账号的间隔，默认 5 分钟；填 0 可关闭限制。</span>
+        </div>
+        <el-button type="primary" @click="openEdit(listingPublishCooldownConfig)">
+          编辑限制
+        </el-button>
+      </div>
+      <div class="publish-stat-grid home-stat-grid">
+        <div class="publish-stat">
+          <strong>{{ formatPublishCooldown(listingPublishCooldownConfig.value) }}</strong>
+          <span>当前间隔</span>
+        </div>
+        <div class="publish-stat">
+          <strong>用户维度</strong>
+          <span>每个用户单独计算</span>
+        </div>
+        <div class="publish-stat">
+          <strong>新增发布</strong>
+          <span>不限制编辑和下架</span>
+        </div>
+        <div class="publish-stat">
+          <strong>键</strong>
+          <span>{{ listingPublishCooldownConfig.key }}</span>
+        </div>
+        <div class="publish-stat">
+          <strong>更新</strong>
+          <span>{{ formatHomeConfigStatus(listingPublishCooldownConfig, '未初始化') }}</span>
+        </div>
+      </div>
+    </section>
+
     <section v-if="salePriceConfig" class="publish-config-panel">
       <div class="publish-config-main">
         <div>