Productivity determines production relations, and production relations react on productivity. When the relations of production adapt to the development of productive forces, it will promote the development of productive forces; On the contrary, it will hinder the development of productive forces. The interaction between productivity and production relations and their contradictory movements show the inherent and inevitable connection between them, that is, production relations must adapt to the situation of productivity. Therefore, it is required to respect the law of social development, establish a sense of reform and innovation, and constantly adjust the aspects and links in production relations that are not suitable for the development of productive forces.