【裁判要旨】仲裁遗漏了必须参加诉讼的当事人,一审法院无权发回仲裁机构重审,应依法追加,不受仲裁前置程序的限制。这里的必须参加诉讼的当事人是指固有的必要共同诉讼的当事人。当事人一审时增加或变更诉讼请求的,增加或变更后的诉讼请求与讼争的劳动争议具有不可分性,应当合并审理;如属独立的劳动争议,应当告知当事人重新申请仲裁。这里的不可分性,是指诉讼请求与仲裁的事项基于同一事实而产生,相互之间具有依附性。 Arbitration omitted the parties must participate in the proceedings, the court of first instance does not have the right to send back to the arbitration agency retrial, should be added in accordance with the law, not subject to pre-arbitration proceedings. The parties involved in litigation here are the parties to the inherent necessary litigation. When a party increases or changes a litigation claim at the first instance, the increased or changed litigation request is inseparable from the labor dispute concerning the litigation and should be merged for trial. In the case of an independent labor dispute, the litigant should be informed to reapply for arbitration. Indispensability here refers to the fact that litigation claims and arbitrations are based on the same facts and are dependent on each other.