A method for receiving a signal or transmitting a signal on a plurality of component carriers (CCs) in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal and comprises the steps of: in order to receive multiple CC downlink control information scheduling one or more CCs, blind decoding the multiple CC downlink control information in a search space on a particular CC; and, on the basis of the received multiple CC downlink control information, transmitting an uplink control or data channel or receiving a downlink data channel on one or more of the CCs, wherein the received multiple CC downlink control information can comprise transmission mode (TM) dependent multiple CC downlink control information or fallback multiple CC downlink control information.