Foreign exchange reserve is an important part of a country's international liquidity, which has an important influence on balancing international payments and stabilizing exchange rate. The functions of replenishing foreign exchange reserves mainly include the following four aspects:

First, adjust the balance of payments to ensure external payment.

The second is to intervene in the foreign exchange market and stabilize the local currency exchange rate.

The third is to maintain international reputation and improve external financing ability.

The fourth is to enhance comprehensive national strength and ability to resist risks.