十一届三中全会以来，推动党史大发展的根本原因是：一，十一届三中全会确立了实事求是、改革开放的路线。二，经济建设大发展，盛世修史是必然。三，党和国家重视。这些因素又为党史研究创造了一些直接、间接的推动力：（一）平反冤假错案。如为刘少奇、彭德怀、张闻天等平反 Since the Third Plenary Session of the 11th CPC Central Committee, the fundamental reasons for promoting the great development of party history are as follows: First, the Third Plenary Session of the 11th Central Committee of the Communist Party of China has established a line of seeking truth from facts and reform and opening up. Second, the great development of economic construction, history of prosperity is inevitable. Third, the party and the state attention. These factors have created some direct and indirect impetus for the study of the history of the party: (1) Replacing the unjust and false case. Such as Liu Shaoqi, Peng Dehuai, Zhang Wentian and other rebellious