1. Select fund varieties according to risk tolerance. Investors who pursue the safety of funds can choose monetary and bond funds, and investors who pursue income can choose hybrid and equity funds.

2. Choosing a fund manager with high investment level is one of the most important reasons that affect the fund's income. The fund manager has a good investment level and the expected return of the fund is high.

3. Choosing a good industry, investors can choose funds with great development prospects, high profit-making effect or good industry stability.

4. Look at the maximum retreat. The maximum retracement is the interval from the highest to the lowest net value of the fund in a period of time. The lower the maximum withdrawal value of the fund, the better.

5. Look at the historical performance of the fund. Historical performance represents the performance of the fund since its establishment. Investors can choose funds with high historical performance.