The three principles of commercial banks' exhibition industry refer to "know your customers", "know your business" and "due diligence". Banks generally implement the three principles of exhibition industry by improving internal control system and business process design, strengthening departmental division of labor assistance, and strengthening post-loan management, so as to be more cautious and strict in reviewing the true compliance of business.

20 13 in may, the state administration of foreign exchange introduced the principle of "know your customer" for the first time in the notice on strengthening the management of foreign exchange capital inflow, emphasizing the screening of fictitious trade background of banks. Subsequently, the State Administration of Foreign Exchange required banks to implement the requirements of the "Three Principles of Exhibition Industry" in the process of handling business, and banks gradually became the main line of defense against systemic financial risks in China.