The period from the Yan’an Rectification Movement to the 7th National Congress of the Communist Party of China(CPC) was a crucial stage for Chinese revolution. During this period, various ideological and work style problems within the Party were rectified, the centralized and unified leadership of the Central Committee was strengthened. The CPC adopted Mao Zedong Thought as the Party’s guiding ideology, marking the CPC’s maturity in the politically, ideologically and organizationally. It laid a solid foundation for the victory of the New-democratic Revolution and the birth of the People’s Republic of China.