Improving the tax system has always been an important part of national efforts. Due to the different situations and tasks of economic and social development in different periods, the requirements for the construction of the taxation system are also different. With the passage of time and changes in the social environment, the tax system will have a certain impact. These influences have also promoted the reform and progress of the tax system to a certain extent. From the tax system of economic system reform, to the tax system of the "profit-to-tax" period, to the tax system in 1994, certain achievements have been made in the improvement of the national tax system. Successfully, reforming the taxation system can not only enhance the country's macro-control capabilities and increase financial investment. However, the current domestic and international situation is undergoing profound changes. Only by continuously reforming the tax system according to the needs of different periods and economic and social development situations can we ensure the continuous development of social modernization and maintain the orderly operation of the entire social economy.