社会形态理论是马克思唯物史观的重要组成部分。马克思把社会形态看成是以生产力为主，包括生产关系、上层建筑和其他一切社会要素在内的有机体系。他提出“五形态”说和“三形态”说，从不同角度说明社会的演进过程和特点，揭示了历史发展中的延续性和跳跃性的统一。通过对社会形态理论的再研究，可以加深对中国现阶段社会性质的认识 Social formation theory is an important part of Marx’s historical materialism. Marx regards social formation as an organic system dominated by productive forces, including the relations of production, the superstructure and all other social elements. He proposed the “five forms” theory and the “three forms” theory. He explained the evolution process and characteristics of society from different perspectives and revealed the continuity and jumping unity in historical development. By re-studying the theory of social form, we can deepen the understanding of the social nature of China at this stage