Abstract:Deng Xiaoping is the primary architect of China's reform and opening up.In the process of opening up the path of socialism with Chinese characteristics,he also made great reform and innovation in the Party construction to improve the Party's leadership.Especially in the new era of reform and opening up,in order to strengthen and improve the leadership of the Party,he achieved a great transition of the Party's political line,improved the Party's system building to the fundamental status,combined the reform of the Party's ruling style with the reform of the national political system,and pointed out the importance and strategic significance of the struggle against corruption in the context of reform and opening up.Deng Xiaoping's reform and innovation of the Party building is the theoretical and practical foundation of the Party building in the new era.