1. First, you need to contact the broker of the securities account or the stock exchange.

2. Secondly, according to the requirements of brokers or stock exchanges, it is necessary to provide some personal identification documents, fund account information and other related materials.

3. Finally, according to the guidance of brokers or stock exchanges, it is necessary to sign an agreement or apply online to complete the relevant application process. Once the application is successful, the account will obtain the trading authority of reverse repurchase of government bonds.