After the stock account is opened, it can be bound to the bank counter with the tripartite depository agreement, and the customer needs to know the code of the securities company and the code of the business department in the banking system. Some banks, such as Agricultural Bank of China and ICBC, can be directly bound at the counter of securities companies. Some securities companies can bind five bank cards at the same time, and transfer money between banks through the platform of the securities company, which can avoid handling fees. Local or off-site bank cards can be used. For non-bank cards, you need to apply for a three-party depository card at the brokerage business department where the account is opened. You need to prepare the second-generation ID card, account opening form and bank card. Transfer all the funds in the securities account to the bank card the day before going to the brokerage business hall, ensure that the balance of funds in the securities account is zero, and close the overnight financial management function at least two days in advance.