摘要： 域外法治国家和地区均从宪法的高度保障公民诉诸诉讼的裁判请求权，并在民事诉讼法上具体保障当事人的诉讼实施权。诉讼实施权与裁判请求权、当事人适格、诉的利益、纠纷管理权等之间的关系需要厘清，诉讼实施权应界定为为了保护本人或者他人的实体权益，具备诉的利益的纠纷管理权主体以自己的名义主张民事权利义务关系或者特定法律事实的权能。

关键词: 诉讼实施权诉权, 当事人适格, 诉的利益, 纠纷管理权

Abstract: The mainstream regions of the world all protect citizens' right to access to justice on the constitutional level and right to sue or be sued on the civil procedure law level. On the basis of distinguishing between the right to access to justice and right to sue or be sued, standing of the litigants, litigation interest, substantive right and dispute management right, this paper defines right to sue or be sued as the right for the subject of dispute management right who has the necessity and the actual effect in lawsuit to sue or be sued in his own name with the protection on his own substantive rights and interests or others' in a realistic manner or in preparation.

Key words: Right to Sue or Be Sued, Litigation Right, Standing, Litigation Interest, Disputes Administration Right