The scope of the transaction is different. The difference between bilateral and unilateral bond lending lies in the different trading scope. Unilateral listing means that bonds can only be listed and traded on the comprehensive agreement trading platform of Shenzhen Stock Exchange. Bilateral listing means that bonds can be listed on the comprehensive agreement trading platform or the centralized bidding system of Shenzhen Stock Exchange at the same time. Bond lending can enhance the liquidity of the bond market, and its main function is to provide investors with opportunities to short cash bonds and improve the turnover speed of bonds.