【摘要】 随着国际经贸关系的日益复杂化与商事仲裁的迅速发展，仲裁案外人准入程序已成为仲裁实践和理论研究的重点议题。通过深入分析，发现在实践中仲裁案外人准入程序存在几个问题：首先，仲裁中案外人加入的准司法性质与仲裁当事人自愿原则存在冲突；其次，案外人准入仲裁程序的标准判定模糊；最后，案外人准入仲裁程序后的权利保障存在问题。因此，需要在仲裁自愿原则和准司法权之间找到平衡点，并以“案外人”是否属于“同一仲裁协议”为准区分不同的准入程序，同时确保案外人准入后能享有相应的权利，以推动仲裁案外人准入程序的优化。更多还原

【Abstract】 With the increasing complexity of international economic and trade relations and the rapid development of commercial arbitration, the procedure of joining non-signatory parties in arbitration has become a key topic in arbitration practice and theoretical research.Through in-depth analysis, it is found that in practice, there are several problems in the joining procedure of non-signatory parties in arbitration: firstly, the quasi-judicial nature of joining by non-signatory parties in arbitration conflicts with the principle of voluntariness of the parties; secondly, the standard of joining in arbitration by non-signatory parties is ambiguous;and lastly, how to safeguard the rights of non-signatory parties after joining in arbitration in order to improve and perfect the joining procedure of non-signatory parties in arbitration,the following measures can be taken. Therefore, it is necessary to find a balance between the principle of arbitration voluntariness and quasi-jurisdictional power, and distinguish different access procedures based on whether the “non-signatory parties”belongs to the “same arbitration agreement”, and at the same time ensure that the non-signatory parties can enjoy the corresponding rights after access, so as to promote the optimization of the access procedure for the non-signatory parties.更多还原