The investment threshold of fixed investment business is low. The general starting point of fixed investment business is 100~300 yuan, which greatly lowers the investment threshold and provides convenience for small investors. Therefore, regular fixed investment can be included in the investment scope of the working class and provide them with certain income. The fixed investment method is flexible, which increases the investment safety factor. Fixed investment can be suspended, terminated or resumed at any time, and no penalty interest will be levied when the contract is terminated. When there are risks in the market, you can advance and retreat calmly, ensuring that you can adjust your investment in time according to your own judgment on the market. In the turbulent market environment, flexible investment methods may increase the security of your investment. Moreover, the fixed investment is convenient for investors to adjust the fixed investment funds at any time according to their own economic strength and family investment plan.