Abstract: The accuracy of litigation requests not only affects the trial efficiency of civil public interest litigation, but also relates to the full protection of social public interests and the legitimate interests of the parties, and it is also related to the effective promotion of the construction of a socialist country ruled by law. At present, the civil public interest lawsuits filed by the procuratorate is lack of precision in civil public interest litigation, which directly affects the effect of judicial protection and relief on public interest. Solving this problem requires the active cooperation of many parties. Theoretically, the justice concept emphasized by the civil substantive law, the efficiency value insisted by the civil procedure law and the modesty principle upheld by the operation of procuratorial power all emphasize the necessity of accurate requests in civil public interest litigation. From the perspective of practice, the tradition of private benefit relief, the loss of pre-trial preparation and judges' interpretation, and the lack of power supply and knowledge reserve from procuratorate cause the dilemma of accurate requests in civil public interest litigation. In order to improve accuracy of requests in civil public interest litigation filed by the procuratorate, it is proposed that developing a special interest litigation liability system of civil public, strengthening the investigative power of prosecutors, making full use of pre-trial preparation procedures, encouraging judges to actively exercise of the clarifying power and improving quality of work of prosecutors should be taken seriously.