中文摘要：

我国2012年新修《民事诉讼法》加入了一个很重要的诉讼程序制度——第三人撤销之诉制度。在司法实践中,此制度的适用和其立法目的会产生一些冲突。因此,我国理论与实务界对该制度进行广泛的讨论,尤其以作为制度实践中先决条件的原告适格问题的探讨最引人注目。所以,在司法实践过程中可以从第三人系统的权益保护制度及与案外人申请再审制度的比较及演变,并借鉴第三人撤销之诉制度相对比较完善的法国等国家,以及我国台湾地区的典范做法,明确第三人撤销之诉适格的涵义。

英文摘要：

In 2012,the Civil Procedure Law of the People＇s Republic of China have been added a very important procedure system, which is the system of opposition by a third party. There are some conflicts between the use of the system of opposition by a third party and its legislative purpose in judicial practice. Therefore, the theorical and practical field have many discussions about this system, especially the discussion about the prerequisite of the suitable plantiff in system practice is eye--catching. Thus, this thesis in- tend to analyses the comparison and evolution of the systematic protection of the third party of rights and interests system and the application for retrial system of the person not involed in the case. And use the typical measures for reference, which is comparatively perfect of the opposition by a third party system such as France and other countries,Taiwan and other districts explicit the definition of the opposition by a third party.