1, economic development and currency circulation needs: with the development of the economy, transactions become more complex and frequent, need a medium to facilitate transactions. The emergence of money as a medium of exchange promotes the development of the financial industry.

2, risk management needs: in economic activities, risk is unavoidable. The financial industry helps economic agents to diversify and transfer risks by providing risk management tools and services, such as insurance, futures, options and so on.

3, capital allocation needs: the financial industry through the provision of deposit and loan, investment, financing and other services, to achieve the optimal allocation of funds to promote economic growth.

4, technological progress and innovation: with the development of technology, such as the Internet, big data, artificial intelligence, etc., the financial industry has been able to continue to innovate, improve service efficiency and reduce operating costs.