The invention relates to a method for controlling charge, used by pre-charge user. Wherein, said method is characterized in that: the wireless application protocol WAP gateway, according to the different service requests of pre-charge user, communicates relative information with the charge system; and according to the communicated information, processes the collection and control of relative charge. The invention can effectively realize the real-time charge of pre-charge user, to distribute the charge strategy flexibly, to realize the flexible charge on multi charge rates. With said invention, the gateway can realize the two-stage buffer of charge call, to improve the charge reliability. When downloading large document, if the flux is pre-charged, but the user do not obtain relative service, the flux will be feedback, with said invention.