During the period of the new - democratic revolution, the Chinese Communist Party often made right or"left " mistakes due to being shortly - founded; deeply - lacked investigation and research about Chinese history and society; It didn t accumulate enough theories and form the strongly - united core of leadership.

Since the new period,the leading core of Central Committee of the CPC has made further development in reform.

The logical thinking developing process of the Party leading core is from revolution to reform,to innovation again,finally to science.

This thesis consists of six parts: introduction, developing productive forces which is basic core of Marxism, logical connotation of the productive forces theory of the CPC S three-generation leading core, comparative research in the productive forces theory, logical enlightenment from the comparative research, concluding remarks.

The three-generation leading nucleuses, from Mao Zedong to Deng Xiaoping to Jiang Zemin, have been carrying out exploration and practice on how to apply the democratic thoughts to the general plan of administering the country and have been holding to keeping up with the times and developing socialist democracy.

Setting out from theory of system, the article explains the appearance and development of the Communist Party of China, and insists that the party becomes the leading nucleus of building cause of socialism with Chinese characteristics is the inevitable choices of the Chinese people and history.

One of the Key factors is due to the fact that the Party and its Leading nucleus have always attached great importance to the ideological building of the Party itself.

It has been irrefutably proved by history that the Communist Party of China is the core of leadership of the socialist construction.