diff --git a/internal/service/managercenter/service.go b/internal/service/managercenter/service.go
index f19bcbb..e8d95a0 100644
--- a/internal/service/managercenter/service.go
+++ b/internal/service/managercenter/service.go
@@ -178,6 +178,19 @@ func (s *Service) SendProps(ctx context.Context, user AuthUser, req SendPropsReq
 	}
 
 	days := propsGiftDays(prop.Type)
+	if prop.Type == propsTypeBadge {
+		if err := s.java.ActivateTemporaryBadge(ctx, req.AcceptUserID.Int64(), prop.ID, days); err != nil {
+			return nil, serverError("send_badge_failed", err.Error())
+		}
+		return &SendPropsResponse{
+			Success:      true,
+			AcceptUserID: req.AcceptUserID,
+			PropsID:      req.PropsID,
+			Type:         prop.Type,
+			Days:         days,
+		}, nil
+	}
+
 	grants := []propsGrant{{
 		propsID: prop.ID,
 		typ:     prop.Type,
diff --git a/internal/service/managercenter/service_test.go b/internal/service/managercenter/service_test.go
index 310bce8..79d28f0 100644
--- a/internal/service/managercenter/service_test.go
+++ b/internal/service/managercenter/service_test.go
@@ -15,16 +15,22 @@ import (
 )
 
 type fakeManagerGateway struct {
-	recharges       map[int64][]integration.UserTotalRecharge
-	rechargeErr     error
-	abilities       map[int64]integration.PropsNobleVIPAbility
-	maxAbility      integration.PropsNobleVIPAbility
-	giveRequests    []integration.GivePropsBackpackRequest
-	punishRequests  []integration.PunishAccountRequest
-	unblockRequests []integration.UnblockAccountRequest
-	switchIDs       []int64
-	cacheCleared    []int64
-	badgeIDs        []int64
+	recharges        map[int64][]integration.UserTotalRecharge
+	rechargeErr      error
+	abilities        map[int64]integration.PropsNobleVIPAbility
+	maxAbility       integration.PropsNobleVIPAbility
+	giveRequests     []integration.GivePropsBackpackRequest
+	punishRequests   []integration.PunishAccountRequest
+	unblockRequests  []integration.UnblockAccountRequest
+	switchIDs        []int64
+	cacheCleared     []int64
+	badgeActivations []fakeBadgeActivation
+}
+
+type fakeBadgeActivation struct {
+	userID  int64
+	badgeID int64
+	days    int
 }
 
 func (f *fakeManagerGateway) GetUserProfile(context.Context, int64) (integration.UserProfile, error) {
@@ -64,8 +70,8 @@ func (f *fakeManagerGateway) SwitchUseProps(_ context.Context, _ int64, propsID
 	return nil
 }
 
-func (f *fakeManagerGateway) ActivateTemporaryBadge(_ context.Context, _ int64, badgeID int64, _ int) error {
-	f.badgeIDs = append(f.badgeIDs, badgeID)
+func (f *fakeManagerGateway) ActivateTemporaryBadge(_ context.Context, userID int64, badgeID int64, days int) error {
+	f.badgeActivations = append(f.badgeActivations, fakeBadgeActivation{userID: userID, badgeID: badgeID, days: days})
 	return nil
 }
 
@@ -220,6 +226,34 @@ func TestSendNobleVIPGivesAccessoriesAndSwitchesMax(t *testing.T) {
 	}
 }
 
+func TestSendBadgeActivatesBadgeBackpack(t *testing.T) {
+	service, fake := newManagerCenterTestService(t)
+	db := service.db.(*gorm.DB)
+	seedManager(t, db, 1)
+	seedUsers(t, db, userBaseInfoRow{ID: 2, Account: "2"})
+	seedProps(t, db, propsSourceRecordRow{ID: 501, Type: propsTypeBadge, Name: "Activity badge", AdminFree: true})
+
+	resp, err := service.SendProps(context.Background(), AuthUser{UserID: 1}, SendPropsRequest{
+		AcceptUserID: ID(2),
+		PropsID:      ID(501),
+	})
+	if err != nil {
+		t.Fatalf("SendProps() error = %v", err)
+	}
+	if !resp.Success || resp.Type != propsTypeBadge || resp.Days != defaultGiftDays {
+		t.Fatalf("resp = %+v, want badge success with default days", resp)
+	}
+	if len(fake.badgeActivations) != 1 {
+		t.Fatalf("badge activations = %+v, want one", fake.badgeActivations)
+	}
+	if got := fake.badgeActivations[0]; got.userID != 2 || got.badgeID != 501 || got.days != defaultGiftDays {
+		t.Fatalf("badge activation = %+v, want user 2 badge 501 days %d", got, defaultGiftDays)
+	}
+	if len(fake.giveRequests) != 0 {
+		t.Fatalf("give requests = %+v, want no props backpack grant", fake.giveRequests)
+	}
+}
+
 func TestSendVIPUsesVIPLevelConfig(t *testing.T) {
 	service, _ := newManagerCenterTestService(t)
 	db := service.db.(*gorm.DB)