The so-called "supply-side reform" refers to the reform starting from the supply side. The so-called "structural reform" refers to promoting the reform of structural problems. The so-called "supply-side structural reform" refers to the reform of promoting economic structural problems from the supply side. In this paper, these concepts are not strictly distinguished, and the word supply-side reform is mainly used below. Supply and demand are the most important concepts in economics, and the theoretical building of modern economics is built on these concepts. Demand refers to the demand with the ability to pay, and the total demand consists of the "troika" of consumption, investment and net export. Narrow supply refers to the goods or services that producers are willing and able to provide at a certain price level in a certain period of time; In a broad sense, supply refers to all supply-side factors or supply-side forces that can play a role in economic development and economic efficiency improvement, including economic activity subjects (such as enterprises and individuals) and production factors (such as labor, capital, land and other resources, entrepreneur management, government management, etc.). ), factor upgrading (such as technological progress, human capital promotion, knowledge growth, information technology, etc.). ), as well as structural changes (such as industrialization, urbanization, regional development) China's current structural problems mainly include six aspects: industrial structure, regional structure, factor input structure, emission structure, economic growth power structure, and income distribution structure. Among them, the industrial structure problem is characterized by the high proportion of low value-added industries, high consumption, high pollution and high emission industries; The problems of regional structure are unreasonable population distribution, low urbanization rate of registered population, unbalanced, uncoordinated and unfair regional development; The problem of factor input structure is characterized by the high proportion of general factors such as resources, energy, labor and capital, and the low proportion of advanced factors such as talents, technology, knowledge and information. Discharge structure problems, high proportion of waste water, waste gas, waste residue and carbon dioxide; The problem of the dynamic structure of economic growth is that it relies too much on the "troika" of investment, consumption and export, especially the investment that drives economic growth; The problem of income distribution structure is manifested in the large income gap between urban and rural areas, industries and different groups. These six aspects of structural problems are relatively independent and overlapping, which need to be solved through supply-side structural reform. The essence of supply-side reform is to form a new subject, that is, to give full play to the decisive role of the market in resource allocation and the leading role of enterprises, entrepreneurs and entrepreneurs in economic development, and at the same time simplify administration and decentralize power, change government functions, restrain the "tangible hand" of the government, and correctly play the role of the government; The second is to cultivate new impetus, that is, to cultivate new growth impetus through comprehensive reform, to form new economic growth points through comprehensive innovation, and to achieve sustainable economic development by improving total factor productivity; The third is to develop new industries, that is, on the one hand, we should respect and conform to economic laws and market laws, eliminate excess capacity and zombie enterprises in time, clear the market in time, avoid waste of resources, dissolve the economic bubble in time and avoid systemic risks, on the other hand, we should vigorously develop new industries, new technologies and new formats.