Based on the review of we Communist Party continually deepening the knowledge on cultural theory, this paper speaks highly of the statement of "Maximize market's role optimization in resource allocation." from the Sixth Plenary Session of the Seventeenth Central Committee and holds the thought that this statement is not only the scientific conclusion we Communist Party draws through a longtime exploration, but also reflects that we Communist Party's knowledge has reached a new hight about the laws of socialism with Chinese characteristics, the socialist market economic law with Chinese characteristics and the socialist culture development laws with Chinese characteristics, which is a major breakthrough of socialist cultural theory innovation with Chinese characteristics. <<