And it is becoming one of the most important decisive factors to change our lives. Taxpayer is an obligation stipulated by law and a legal right of taxpayer. Tax planning refers to the taxpayer's design and strategy for the production and operation, investment, financial and economic structure and other business or tax matters of the enterprise without violating national laws and regulations, so as to optimize the overall tax burden of the enterprise and maximize the value of the enterprise. With the development of China's market economy and the further improvement of tax system and tax law, tax planning will become a means for taxpayers to safeguard their legitimate rights and interests and an indispensable part of enterprise finance and business activities. This paper introduces some basic theories of tax planning, discusses the definition and characteristics of tax planning, expounds the significance of tax planning, and has a preliminary understanding of it. Then it introduces the methods and principles of tax planning based on the new enterprise income tax, and makes a brief introduction according to the relevant contents of tax planning of enterprise income tax, so as to use tax planning as guidance. Finally, it puts forward some suggestions on the development prospect of tax planning in China.