Abstract: The Manuscript of Economic Philosophy in 1844 is the earliest text of Marxs systematic argumentation on Communism and an important part of the original context of Marxist concept of Communism.From the perspective of ideological essence,when Marx demonstrated the concept of Communism,he always focused on the issue of “sublation of private property”,which is a key to understanding Marxs Communism.From the perspective of critical construction,the crude Communism regards private property as material property,and treats private property in the way of equalitarianism.In essence,the real meaning of private property has not been understood.Political Communism transcends the crude Communism and regards private property as the self alienation of human beings,but it hides the positive nature of private property.Marx criticized this and put forward his own views of Communism on this basis.Marx believes that the essence of private property is alienated labor,and Communism is not only the development and abandonment of human self alienation,but also the positive development and abandonment on the basis of the historical movement of private property.

Key words: Communism, private property, alienated labor, human self-alienation, sublation