Provided are a method and device for rate matching in a wireless communication system. More specifically, provided is a method for rate matching by user equipment (UE), in new radio access technology (NR), under various circumstances. As an example, UE receives a configuration for the rate matching either UE-specifically or cell-specifically, and, if the configuration is received UE-specifically, the rate matching is performed only on unicast data, and, if the configuration is received cell-specifically, the rate matching is performed on broadcast data and the unicast data.