Provided are a method for a device-to-device (D2D) operation performed by a terminal in a wireless communication system, and a terminal using the method. The method comprises: generating D2D support band information for each band combination, which indicates a frequency band that simultaneously supports cellular communication with a network and D2D operation with another terminal, which are carried out by the terminal, in a frequency band or a frequency band combination for cellular communication; and transmitting the D2D support band information for each of the band combinations to the network.