The Supervision Law of PRC has enforced in 2018, which led to a series of great changes in China. The new anti-corruption system has been formed in China, as supervisory commissions at various levels with broad power to curb corruption crimes. The study of supervisory commission provides two original approaches. It provides new insights and details into the new supervisory institutions in China. On the other hand, the reasons behind the authorities have been revealed. And the key factors in supervising corruption can be summarized, which are critical to anti-corruption. No matter commissions for discipline inspection or people's procuratorate occurred lots of changes. While, the alterations are worth researching and rethinking to rise the efficiency of combating corruption. This article attempts to analyze the changes to seek for the path of supervising corruption by current laws.