| China's Constitution stipulates : The people's procuratorate is country's legal supervision organ, the basic function of which is to strengthen legal supervision, safeguarding national unification law, ensuring equality and justice in the whole society. One of the principles formulated in the current Code of Criminal Procedure is: " procuratorial organs supervise the criminal procedure according to law." In addition to the general principles, a number of corresponding regulations are made in other relevant sections, the procuratorial organs' supervision are made concretely, Meanwhile, the procuratorial organs' supervision means, measures, corresponding procedures are made too, which strengthen the supervisory function of procuratorial organs, improve the efficiency of supervision. But from the judicial practice, because of the imperfect legislation, inadequate supervision of the design of the system and other factors, People's Procuratorate had encountered many difficulties and problems when he performs the functions of supervision. Understanding of the functions of the people's procuratorates correctly, analyzing the current situation and difficulties faced by the people's procuratorates correctly, and put forward practical measures to reform and improve the system of supervision, and improve our people's procuratorates, to give full play to their supervisory functions, which are very important to build the rule of law, develop socialist democracy, and Build a harmonious society.This paper is divided into four main parts : First, elaborate the survey of the procuratorial organs' supervision functions, including the definition of supervision and procuratorial Supervision, theoretical foundation, and the history of China's procuratorial supervision. Next, analyses the procuratorial supervision system of common law, civil law countries, Japan and the former Soviet Union, summarize the world's attitude and views on the procuratorial supervision today. Part III and Part IV of this article are the focus, Based on our analysis of the current status of the people's procuratorate functions, summarized the current difficulties and problems were faced with procuratorial organs, Finally, on the basis of China's actual situation, advanced a number of related measures and steps on how to perfect and reform improve the supervisory functions to of the procuratorial organs: improve legislation of the relevant provisions, avoid gaps in legislation, make the procuratorial organs exercise the right according to law; In addition to overseeing the investigation exercise the powers of arrest in accordance with the law, strengthen the supervision of apprehension, bail, surveillance, detention, frozen and so; handle the relationship between prosecution functions and supervisory functions in trial stage correctly; strengthen the supervision of prisons and other enforcement agencies. Meanwhile, who can supervise People's Procuratorate is hot issues now. I believe that our system of the people's supervisors trial is very necessary, but also in accordance with China's actual conditions, But because the supervision work is closely related to the law, and is very professional. So my suggestion is that we need make some related criteria and conditions for the selection of the people's Procuratorate, make some improvements and adjustments, thereby protecting the entire procuratorial organs to exercise and play effectively. |