The invention provides a downlink control channel processing method. The method comprises the steps that a sending end distributes the G-RNTI of a cluster service group in a special space, and the G-RNTI is used for conducting cluster service scheduling; for UE which is in an RRC_Connected state in the cluster service group, if a cluster service and an UE individual service exist simultaneously, the cluster service and the UE individual service are combined, and then the C-RNTI of the UE is used for scheduling the combined services; a receiving end is used for conducting a special space blind test by a {G-RNTI} or {C-RNTI, G-RNTI} at a downlink TTI; once any RNTI is detected, the blind test is ended. The invention further provides a downlink control channel processing device and system. According to the scheme, the downlink control channel processing method, device and system can support the scheduling of multiple groups of cluster services, and lower the UE searching complexity.