The first principle of fund management and application is to ensure the safety of funds. In the initial stage, the fund is mainly limited to deposit with the People's Bank of China, invest in government bonds, central bank bills, financial bonds with higher credit ratings and other high-grade bonds. These investment products have high credit rating and low risk, which can guarantee the principal security of the fund. By choosing these safe investment products, the fund can steadily increase its value and reduce investment risks. This strategy helps to protect the interests of investors and ensure the stable operation of the fund.