Control information communicating apparatus and method in Broadband Wireless Access (BWA) system are provided. A Base Station (BS) includes a manager for managing UL control region allocation information of adjacent BSs; a scheduler for scheduling resources and controlling periodic transmission of UL control region allocation information when a UL control region of the BS is the same as UL control regions of the adjacent BSs; and a control information generator for periodically generating the UL control region allocation information under the control of the scheduler.