Based on Marx s books, this paper argues that Marx s individual theory and his theory of socially basic contradiction are unified: in regard to the starting point, Marx s individual theory takes real individuals as its starting point; Marx s theory of socially basic contradiction takes the production of means of material subsistence as its starting point.

Politics,seen from a material historical prospect,is shown as continuous solutions to fundamental social contradictions.

The tenets of historical materialism on fundamental social contradictions form the theory of social dynamics corresponding to the principle of coordinating dynamics.

The existing theory on the basic social contradiction theory is limited in that it has summed up the basic contradictions in social relations but excluded those in natural relations.

The social basic contradiction is the contradiction between productive force and productive relationship.

The united front s active role on the social basic contradiction is to organize the masses, form the greatest and best join force, tame the social basic contradictions movement and its rule, promote its movement, development and progress and even the society history s development.

Though Mao Zedong thought of the two contradictions as the social basic contradiction of China,he didn t enlarge them to the whole human history.

The limitation of Mao Zedong s theory on the basic contradictions of the socialist is to regard the unitary public ownership and the highly centralized planned economy as the essential features of the socialist production relations ; to regard the superstructure, production relations as the principal aspects of the basic social contradictions.

In his "Three Representations" and related ideas, Jiang Zemin fully makes it clear that our primary task now is to develop productive forces, thus pointing out the correct direction in handling basic social contradictions.