Abstract: Because of the limitation of historical circumstances,practice and level of comprehension,Marx,Engels,Lenin and MAO Ze dong didn't scientifically and systematically reveal the issue concerning the definition of socialism and the construction of socialism. On the basis of socialism theory,the fundamental results of practice as well as the actual circumstances of China,DENG Xiao ping made a conclusion of China's socialist practice since liberation ,especially the practice since the opening and reform of our...