I presented the following three bases of content system construction for ideological and political education in universities and colleges. First, the reform and openingup policy provided legal basis for some important educational documents. Secondly, relative research provided the theoretical basis. Thirdly, scientific investigations provided the practical basis. Based on the analysis of these bases, I proposed a dynamic system of content system construction for ideological and political education, which included political education, ideological education, moral education, and psychological education.