Disclosed are a method, an apparatus, and a system for processing a radio link failure (RLF), to provide an RLF processing solution in a scenario where a user equipment (UE) aggregates cell resources of multiple evolved Node Bs (eNBs). The method for processing an RLF provided in the present application comprises: in a scenario where a UE aggregates cell resources of multiple eNBs, a local eNB (LeNB) determining that an RLF occurs on the UE; and the LeNB stopping data transmission of a radio bearer (RB) related to the RLF, and notifying a Macro eNB of related information of the RLF.