A wireless USB host apparatus supporting UWB is disclosed. The wireless USB host apparatus allocates a Media Access Slot of USB super frame to each of a plurality of wireless USB devices to transmit the real-time audio/video data as well as command data, control data and non real-time data through a single transmission channel. Also, the wireless USB host apparatus uses the ultra wide band to exchange data with the plurality of wireless USB devices to support the data transfer rate of about 53.3 to 480 Mbps, guarantees the QoS and supports transmission of the real-time audio/video data.