This articlere researches the political elaborations proposed by the leaders of Communist Party of China (CPC), including Mao Zedong, Deng Xiaoping, Jiang Zemin and Hu Jintao. It intends to confirm whether there are the dialectical thoughts in the elaborations. According to the results of this research, regardless of Mao Zedong Thought, Deng Xiaoping Theory, the Important Thought of Three Represents and the Scientific Outlook on Development, these elaborations are the effects caused by the leaders of the CPC who applied the dialectical logic, including the convertibility of quality and quantity, the unification of contradictions and the negative of negative. The leaders utilized these elaborations to help themselves and the CPC to seize power and maintain the ruling status.