The fixed investment fund of Postal Savings Bank refers to the investment in the designated open-end fund at a fixed time and amount. The purpose of fixed investment is to average the subscription cost of the fund through long-term investment, so as to obtain long-term stable income.

The advantage of the fixed investment of the fund is that the investment income from long-term investment is considerable, and the procedures are very convenient and fast, which can save the investment cost of investors.