diff --git a/app/models/concerns/project_operable.rb b/app/models/concerns/project_operable.rb
index bdce2fda2..10b03cf72 100644
--- a/app/models/concerns/project_operable.rb
+++ b/app/models/concerns/project_operable.rb
@@ -130,7 +130,7 @@ module ProjectOperable
         team_user = member.team_user
         $gitea_client.delete_teams_members_by_id_username(team_user.team.gtid, team_user.user&.login) rescue nil # 移除旧的
         $gitea_client.put_teams_members_by_id_username(team&.gtid, team_user.user&.login) rescue nil # 新增新的
-        team_user.update_attributes!({team_id: team.id})
+        team_user.update_attributes!({team_id: team.id}) unless team.team_users.exists?(user_id: member.user_id)
 
         # 确保组织成员中有该用户
         OrganizationUser.build(self.user_id, user_id)
@@ -150,7 +150,7 @@ module ProjectOperable
         team_user = member.team_user
         $gitea_client.delete_teams_members_by_id_username(team_user.team.gtid, team_user.user&.login) rescue nil # 移除旧的
         $gitea_client.put_teams_members_by_id_username(team&.gtid, team_user.user&.login) rescue nil # 新增新的
-        team_user.update_attributes!({team_id: team.id})
+        team_user.update_attributes!({team_id: team.id}) unless team.team_users.exists?(user_id: member.user_id)
 
         OrganizationUser.build(self.user_id, user_id)
       when 'Reporter'
@@ -170,7 +170,7 @@ module ProjectOperable
         team_user = member.team_user
         $gitea_client.delete_teams_members_by_id_username(team_user.team.gtid, team_user.user&.login) rescue nil # 移除旧的
         $gitea_client.put_teams_members_by_id_username(team&.gtid, team_user.user&.login) rescue nil # 新增新的
-        team_user.update_attributes!({team_id: team.id})
+        team_user.update_attributes!({team_id: team.id}) unless team.team_users.exists?(user_id: member.user_id)
 
         # 确保组织成员中有该用户
         OrganizationUser.build(self.user_id, user_id)