As the main founder of Chinese Communist Party,Mao Zedong made not only an immortal contribution to the establishment,development and expansion of Chinese Communist Party,but also outstanding contribution to the formation and development of Jinggang Mountains Spirit,Yanan Spirit and Xibaipo Spirit with his own unique identity and influence,especially played an irreplaceable role to the formation,development and practice of Xibaipo Spirit.Nowadays,in the process of implementing the spirit of the Fourth Plenary of the Seventeenth Party Congress,researches on Mao Zedong’s contribution to the formation and development of Xibaipo Spirit undoubtedly have a very important theoretical and practical significance for the focus on the improvement of the Party’s ruling ability,maintenance and development of the Party’s advanced nature,the strengthen of the Party’s sense of mission and responsibility to fight for the cause of the Party and the people,and the maintenance of close ties between the Party and the people.