The procuratorial organ is the legal supervisory organ of the State. The procuratorial organ is an important force to promote the modernization of national governance system and governance ability. The procuratorial organ achieves the balance of combating crime and protecting human rights through exercising criminal prosecution. Procuratorial organs safeguard civil and commercial activities according to law by exercising civil procuratorial work. Through the exercise of administrative supervision，the procuratorial organs urge the executive branch to administer according to law. The procuratorial organ protects the national interest and the dark gray public interest through the exercise of Public Interest Litigation. The procuratorial organ provides the safeguard through the exercise of four big procuratorial powers for the construction rule of law environment.