The concept of "class" is one of the important categories in Marx's early analysis of human society.This concept scientifically describes the class nature and class life of human beings,the class relationship between human beings and nature,and others.These important contents have much in common with the theory on community of human destiny.In the face of the new development of capitalism and various challenges by the changes in the world situation,it is of great significance to reflect on and sublate the various alienation states that may appear in the social reality from the perspective of "class" concept,to achieve freedom and liberation of human beings,to build a community of human destiny,and to make progress in overall development of human society.