National governance is an organic system. As a powerful tool for corruption governance，state audit plays a special role in the system. Corruption is the abuse and misappropriation of public power and resources for personal gain. As a critical element of national governance, corruption governance must rely on state audit. This paper establishes a systematic framework of national corruption governance of Hungary, identifies the role, principles, and the specific function of State Audit Office of Hungary. This paper provides further inspiration in order to give full play to the role of China State Audit in our country’s corruption governance system.