The supervision system of second-hand housing transaction funds is a security system to protect the rights and interests of buyers and sellers. Supervising banks to supervise and manage the deposit and payment of transaction funds. The business scope of China Everbright Bank is to absorb public deposits, issue short-term, medium-term and long-term loans, handle domestic and overseas settlement, handle bill acceptance and discount, issue financial bonds, act as an agent for issuance and payment, engage in interbank lending, act as an agent for buying and selling foreign exchange, engage in bank card business, provide letter of credit services and guarantees, and act as an agent for receiving and paying money and insurance agency business.