Chinese big banks are studying how to take part in "one road, one belt" and they have taken political correctness into consideration. ANBOUND think tank scholars point out that commercial banks are actually financial enterprises and they should operate as an enterprise. If commercial banks are to take part in the "one belt, one road", they should act according to the following principles. First, follow market rules and get rid of “political correctness”. Second, prioritize domestic markets and be careful when entering foreign markets. Third, be alert to financial risks, which is the most important task of commercial banks.