The invention relates to a method for providing travel service for a bank user of buying a ticket by swiping card by using a computer system. The method comprises the steps that a central server is used for producing a service information data list; when the user buys the ticket by swiping card, a bank server sends information to a passenger transportation server to confirm; the passenger transportation server conducts primary screening in the service information data list; the bank server conducts secondary screening; the central server selects a service provider according to a screening result of secondary screening or after conducting third screening, and a service page is generated and is sent to a wireless client terminal of the user; after the user conducts buying confirmation, the central server sends an order to a server of the service provider; a consumption voucher is generated by the server of the service provider and is sent to the user; the user shows the consumption voucher, and then the service project can be used successfully once confirmation succeeds. The method for providing the travel service for bank user of buying ticket by swiping card by using the computer system has the advantages that data information in the bank sever and the passenger transportation server can be used effectively, convenient and quick device resources are provided for the user buying the ticket by swiping card, the demand of a customer is met, the resources are saved, and contradiction or dispute does not occur easily.