diff --git a/cmd/channel_http_test.go b/cmd/channel_http_test.go
index ba94501..aa799d9 100644
--- a/cmd/channel_http_test.go
+++ b/cmd/channel_http_test.go
@@ -126,10 +126,17 @@ func TestChannelHTTPListsMetricsOptionsAndAtomicCreation(t *testing.T) {
 		t.Fatal("主渠道不见了")
 		return nil
 	}
-	row := rootRow(list(8, "", 2))
-	if row["gameCount"] != float64(1) || row["playerCount"] != float64(1) || row["totalPayAmount"] != "30.30" || row["busierDisplayName"] != "sdk-account（leaf）" {
+	firstPage := list(8, "", 2)
+	row := rootRow(firstPage)
+	if row["gameCount"] != float64(1) || row["playerCount"] != float64(1) || row["totalPayAmount"] != "30.30" || row["busierDisplayName"] != "sdk-account（leaf）" || row["parentName"] != "" {
 		t.Fatalf("默认偏好或展示字段错误: %+v", row)
 	}
+	for _, raw := range firstPage["rows"].([]any) {
+		child := raw.(map[string]any)
+		if child["id"] == "101" && child["parentName"] != "main-channel" {
+			t.Fatalf("父级名称应保留渠道原始值: %+v", child)
+		}
+	}
 	if err := db.Exec("INSERT INTO sys_user_preference(user_id,include_sub_promote,idcard_dedup) VALUES(8,1,0)").Error; err != nil {
 		t.Fatal(err)
 	}
diff --git a/internal/biz/business/channel.go b/internal/biz/business/channel.go
index b1c4e52..c136422 100644
--- a/internal/biz/business/channel.go
+++ b/internal/biz/business/channel.go
@@ -61,12 +61,6 @@ func (c *Channel) BusinessDisplayName() string {
 }
 
 func (c *Channel) ParentDisplayName() string {
-	if c.Level != nil && *c.Level == 1 {
-		if len(c.BusinessPath) > 0 {
-			return c.BusinessPath[len(c.BusinessPath)-1]
-		}
-		return c.BusinessDisplayName()
-	}
 	return c.ParentName
 }
 
diff --git a/internal/service/business/channel_portrait_test.go b/internal/service/business/channel_portrait_test.go
index a01177e..0a00a15 100644
--- a/internal/service/business/channel_portrait_test.go
+++ b/internal/service/business/channel_portrait_test.go
@@ -27,7 +27,7 @@ func TestChannelPortraitKeepsContactAndCooperationStatusSeparateFromAudit(t *tes
 			t.Fatal(err)
 		}
 		b := result.Basic
-		if b.LockStatusLabel != sample.label || b.StatusLabel != "正常" || b.Phone != channel.Phone || b.SettlementDays == nil || *b.SettlementDays != 7 || b.BusierDisplayName != "SDK商务（所属商务）" || b.ParentPromoteName == nil || *b.ParentPromoteName != "所属商务" {
+		if b.LockStatusLabel != sample.label || b.StatusLabel != "正常" || b.Phone != channel.Phone || b.SettlementDays == nil || *b.SettlementDays != 7 || b.BusierDisplayName != "SDK商务（所属商务）" || b.ParentPromoteName != nil {
 			t.Fatalf("portrait metadata or status mismatch: %+v", b)
 		}
 	}