Income distribution is the source of people's livelihoods, and it is the most important and direct way to improve people's livelihoods and achieve development results shared by the people. Since humanity entered the era of division of labor and cooperation, distribution has become a key link in ensuring the normal operation of society. Reasonable allocation can strengthen cooperation willingness and promote social development. If the ownership structure in the socialist basic economic system is the institutional guarantee for expanding the "cake" on the basis of ensuring fairness and justice, then how to divide the "cake" after it is made depends on the distribution system. The Fourth Plenary Session of the 19th Central Committee of the Communist Party of China established public ownership as the mainstay, multiple forms of ownership for common development, distribution according to work as the mainstay, and multiple forms of distribution coexisting. The socialist market economy system was jointly defined as the basic socialist economic system in China, which is an important development and deepening of the connotation of the socialist basic economic system and enriches the theory of Marxist political economy on market economy. Taking the distribution system as an important component of the socialist basic economic system has further clarified the direction of reform and development of the distribution system. It is necessary to consolidate the dominant position of the public ownership economy, adhere to distribution according to work as the main body, continuously increase the proportion of labor remuneration in the initial distribution, and promote the common development of various ownership economies to ensure that various distribution methods are more fair and effective, Providing important institutional guarantees for the people to share the fruits of reform and development. This is in line with the development level of social productivity in the primary stage of socialism in China, and is of great significance for better leveraging the superiority of the socialist system with Chinese characteristics, continuously liberating and developing social productivity, and promoting high-quality economic development. Since the 18th National Congress of the Communist Party of China, the Central Committee of the Communist Party of China has attached great importance to the issue of income distribution, continuously promoting the reform of the income distribution system, and taking it as an important measure to achieve common prosperity. The report of the 18th National Congress of the Communist Party of China proposes to "do everything possible to increase residents' income". This requires deepening the reform of the income distribution system to achieve synchronous growth of residents' income and economic development, increase of labor remuneration and labor productivity, increase the proportion of residents' income in national income distribution, increase the proportion of labor remuneration in initial distribution, improve the initial distribution mechanism of labor, capital, technology, management and other factors participating in distribution according to their contributions, and accelerate the improvement of taxation, social security The redistribution adjustment mechanism with transfer payment as the main means. Afterwards, the reform of the income distribution system continued to advance. The Third Plenary Session of the 18th Central Committee of the Communist Party of China proposed "standardizing the order of income distribution, improving the mechanism and policy system of income distribution regulation", the Fifth Plenary Session of the 18th Central Committee of the Communist Party of China proposed the concept of shared development, and the report of the 19th National Congress of the Communist Party of China proposed "adhering to the principle of distribution according to work, improving the system and mechanism of distribution according to factors, and promoting more reasonable and orderly income distribution". It is particularly important that the Fourth Plenary Session of the 19th Central Committee of the Communist Party of China established public ownership as the mainstay, multiple forms of ownership for common development, distribution according to work as the mainstay, and multiple forms of distribution coexisting. The socialist market economy system is regarded as the basic socialist economic system, and in line with the requirements of the times, data is included in the scope of production factors, gradually expanding the scope of production factors. At the same time, it is stipulated that production factors are owned by the city