China is faced with thorny issues and risks. At the same time, progress has been made in social justice and rule of law. The prosecution of high-ranking officials in China starting from the Gang of Four has experienced three stages. The prosecution of criminals during the “cultural revolution” represented by Wang Hongwen, Zhang Chunqiao, Jiang Qing and Yao Wenyuan was designed to settle the issue concerning the political lines through judicial process. The prosecution of Chen Xitong and Chen Liangyu, both Members of the Political Bureau of the Central Committee of the CPC, was aimed at solving the inner-Party conflicts through legal process. And the prosecution of Bo Xilai is to fight corruption of high-ranking officials through judicial proceedings. This three-stage trilogy has unfolded to us an evolution of the CPC from a party for political struggle to a law-based party.