The invention relates to the field of logistics and express, in particular to a method for mailing by using intelligent express cabinet. The method has the benefits that when individual user performs mailing, a system can calculate the freight for delivery to a destination of each express company according to the mailing destination and weight of the user, display the freights on an operation screen, and display the historical used time for delivery to the destination of each express company, so that the user can select the express company according to the freight and the historical delivery time; when an e-business user performs mailing, the user can fill in the mailing-related information in a client side in advance, print an express list after payment, and scan a bar code on the intelligent express cabinet to realize mailing. According to the method, the entire mailing process is simple, and the mailing time can be reduced greatly.