diff --git a/YD_Event.Application/Team/Dtos/TeamDtos.cs b/YD_Event.Application/Team/Dtos/TeamDtos.cs
index 77e4da5..db1b191 100644
--- a/YD_Event.Application/Team/Dtos/TeamDtos.cs
+++ b/YD_Event.Application/Team/Dtos/TeamDtos.cs
@@ -46,17 +46,23 @@ public class AddTeamInput
     /// <summary>
     /// 领队ID集合
     /// </summary>
-    public List<long>? LeaderIds { get; set; }
+    [Required(ErrorMessage = "请选择领队")]
+    [MinLength(1, ErrorMessage = "至少需要选择一名领队")]
+    public List<long> LeaderIds { get; set; } = null!;
 
     /// <summary>
     /// 教练ID集合
     /// </summary>
-    public List<long>? CoachIds { get; set; }
+    [Required(ErrorMessage = "请选择教练")]
+    [MinLength(1, ErrorMessage = "至少需要选择一名教练")]
+    public List<long> CoachIds { get; set; } = null!;
 
     /// <summary>
     /// 队员ID集合
     /// </summary>
-    public List<long>? MemberIds { get; set; }
+    [Required(ErrorMessage = "请选择队员")]
+    [MinLength(1, ErrorMessage = "至少需要选择一名队员")]
+    public List<long> MemberIds { get; set; } = null!;
 }
 
 /// <summary>
diff --git a/YD_Event.Application/Team/TeamService.cs b/YD_Event.Application/Team/TeamService.cs
index c92a2e0..ab1b008 100644
--- a/YD_Event.Application/Team/TeamService.cs
+++ b/YD_Event.Application/Team/TeamService.cs
@@ -123,20 +123,12 @@ public class TeamService : BaseService<Core.Entities.Team>, IDynamicApiControlle
             var newTeam = await _teamRep.InsertReturnEntityAsync(team);
             var members = new List<TeamMember>();
 
-            if (input.LeaderIds != null)
-                members.AddRange(input.LeaderIds.Select(uid => new TeamMember { TeamId = newTeam.Id, UserId = uid, PersonType = PersonType.Leader, JoinTime = DateTime.Now }));
-            
-            if (input.CoachIds != null)
-                members.AddRange(input.CoachIds.Select(uid => new TeamMember { TeamId = newTeam.Id, UserId = uid, PersonType = PersonType.Coach, JoinTime = DateTime.Now }));
-            
-            if (input.MemberIds != null)
-                members.AddRange(input.MemberIds.Select(uid => new TeamMember { TeamId = newTeam.Id, UserId = uid, PersonType = PersonType.Athlete, JoinTime = DateTime.Now }));
+            members.AddRange(input.LeaderIds.Select(uid => new TeamMember { TeamId = newTeam.Id, UserId = uid, PersonType = PersonType.Leader, JoinTime = DateTime.Now }));
+            members.AddRange(input.CoachIds.Select(uid => new TeamMember { TeamId = newTeam.Id, UserId = uid, PersonType = PersonType.Coach, JoinTime = DateTime.Now }));
+            members.AddRange(input.MemberIds.Select(uid => new TeamMember { TeamId = newTeam.Id, UserId = uid, PersonType = PersonType.Athlete, JoinTime = DateTime.Now }));
 
-            if (members.Any())
-            {
-                // 去重，防止同一个人在同一个团队有多个角色（如果业务允许则不需要去重，这里假设允许）
-                await _memberRep.InsertRangeAsync(members);
-            }
+            // 去重，防止同一个人在同一个团队有多个角色（如果业务允许则不需要去重，这里假设允许）
+            await _memberRep.InsertRangeAsync(members);
         });
     }
 
@@ -203,19 +195,10 @@ public class TeamService : BaseService<Core.Entities.Team>, IDynamicApiControlle
             await _memberRep.DeleteAsync(m => m.TeamId == input.Id);
 
             var members = new List<TeamMember>();
-            if (input.LeaderIds != null)
-                members.AddRange(input.LeaderIds.Select(uid => new TeamMember { TeamId = team.Id, UserId = uid, PersonType = PersonType.Leader, JoinTime = DateTime.Now }));
-            
-            if (input.CoachIds != null)
-                members.AddRange(input.CoachIds.Select(uid => new TeamMember { TeamId = team.Id, UserId = uid, PersonType = PersonType.Coach, JoinTime = DateTime.Now }));
-            
-            if (input.MemberIds != null)
-                members.AddRange(input.MemberIds.Select(uid => new TeamMember { TeamId = team.Id, UserId = uid, PersonType = PersonType.Athlete, JoinTime = DateTime.Now }));
-
-            if (members.Any())
-            {
-                await _memberRep.InsertRangeAsync(members);
-            }
+            members.AddRange(input.LeaderIds.Select(uid => new TeamMember { TeamId = team.Id, UserId = uid, PersonType = PersonType.Leader, JoinTime = DateTime.Now }));
+            members.AddRange(input.CoachIds.Select(uid => new TeamMember { TeamId = team.Id, UserId = uid, PersonType = PersonType.Coach, JoinTime = DateTime.Now }));
+            members.AddRange(input.MemberIds.Select(uid => new TeamMember { TeamId = team.Id, UserId = uid, PersonType = PersonType.Athlete, JoinTime = DateTime.Now }));
+            await _memberRep.InsertRangeAsync(members);
         });
     }
 }