Marx's theory of need is an important part of Marx's practice of human studies Marx used the historical materialism world outlook and methodology to construct his own practical human studies through his criticism and transcendence of German classical human studies represented by Hegel and Feuerbach, and thus provided a unique humanistic key to the understanding of historical materialism In this process of construction, Marx transformed the method of premise logic, the paradigm change of humanistic ontology, the methodological construction of historical generation theory, and the method of realist thinking started, which not only demonstrated the critical sequence of the needs of the German classical human science, but also achieved revolutionary methodological changes. Marx's needs theory and its methodological changes have profound theoretical value and practical significance for examining the survival and development of the Chinese people since the founding of New China. In theory, we should examine the changes of human existence in the past 70 years with the combination of historicism and realism In practice, reasonable tension should be maintained in the “completeness” and “generative”, “individuality” and “sociality”, “diachronic” and “synchronism”, “appropriateness” and “reality” of needs
