A method for configuring an absolute grant mapping relationship table for a base station, comprises: a radio network controller notifying the base station of the absolute grant mapping relationship table used by an enhanced dedicated channel absolute grant channel (E-AGCH) through a signaling, and the base station returning a response message to the radio network controller after storing the configured information. The present invention allows the absolute grant mapping relationship table used by the base station to be consistent with an absolute grant mapping relationship table of which a user equipment is notified via the air interface to use, so as to ensure that the absolute grant values corresponding to the base station and the user equipment are obtained from the same absolute grant mapping relationship table, and allocation and use of the power resource by the base station and the user equipment are consistent.