Abstract: Plea bargaining is originated in the USA, which is set up and developed in a series of controversy and criticism. Whether China should introduce plea bargaining system has been discussed in the academic circles warmly. The legal basis for the system of plea bargaining is demonstrated from the perspective of jurisprudence: the timeless of justice, the contract freedom spirit of pragmatism, the fusion of two big legal system and interpretation of procedural justice.

Key words: plea bargaining, justice, efficiency, procedural justice

摘要： 辩诉交易制度是在争议和批判中建立和发展起来的，这一制度涉及到公平和效率两大价值的对抗和平衡。从法理学角度来看，至少有五个方面为其提供合法性基础，即正义的时效性、契约自由精神、实用主义哲学、两大法系的融合以及程序正义的再解读。

关键词: 辩诉交易, 正义, 效率, 程序