Marx s theory of social organism constitutes an important part of historical materialism and falls into the category of Marx s theory of social development.

Based on the characteristics of this new era,we discuss modern significance of Marxism\'s theory of social organism.

Marxism\'s theory of social organism encloses objective law of social development and proposes that social development is the natural and harmonious historical process,the process with dynamic balance and the process with the unity of subjective initiative and historical objective law for subjective activity.

Karl Marx\'s social development theory consists of three parts: social holism,social criticism and social development theory.

Marx s theory of social organism,the main content of historical materialism,is a part of Marxist social development theory.

Marx s theory of social organism is the Marx s view of society and history,and it is its high concentration of historical materialism.

The methodology of Marx s theory of social organism is new materialistic dialecticism,while systems methodology fully manifests in sublevels of methodology.