“哪里有起诉裁量,哪里就有把裁量当成歧视工具的危险。”研究检察官的自由裁量权制约机制是为了探寻检察官决定起诉或不起诉的正当性。有鉴于此,本文认为有必要对国外关于检察官自由裁量权的制约机制与我国的现状进行比较研究,并提出了完善我国检察官自由裁量权的具体构想。 “Where there is the risk of prosecution discretion, where there is the risk of using discretion as a discriminatory tool. ” The study of the prosecutor’s discretionary power mechanism is to explore the prosecutor decided to prosecute or not the justification of prosecution. In view of this, this article considers it necessary to make a comparative study on the foreign restriction mechanism of prosecutors’ discretion with the current situation in our country and put forward the concrete conception of perfecting the discretion of our prosecutors.