The "alienation of labor" is the key to the transformation of Max s modern critical paradigm,which expresses itself in two aspects: from of the research dimension of "national economics" to "moral.

These thoughts on social harmony derive from Marx s criticism of the alienation of labor and private property.

In 1844 Manuscript of Economics and Philosophy, Marxdidn t satisfact with reviewing the fact of alienation of labor, but try toshow a beautiful society through criticizing alienation of labor, whichmostly embody in the communist society where the contraditionbetween people and nature, people and society, people and people, eople s body and soul really resolved.

By interpreting Marx’s alienated labour theory in " Economics philosophy manuscript in 1844", this thesis analyzes the theory crux of Marx’s alienated labour.

The author thinks that Marx s alienated labour theory is a peak of thoughts of alienation which plays important roles in all three parts of Marxism.

The problem,however,is how to understand the real meaning of this statement,which requires that we should begin with understanding and grasping the duality of the logic of alienated labour.