Provided are a method and apparatus for determining a carrier set, a storage medium and an electronic device. The method includes following steps: a first carrier set corresponding to a predetermined logical channel group for a UE performing a sidelink transmission is determined, where the predetermined logical channel group includes one or more logical channels, and the logical channels in the predetermined logical channel group correspond to a same destination ID. The problem of lacking the method of determining a complete carrier set when the UE performs a sidelink transmission in the related art is solved, and a purpose of determining a carrier set required by the UE for determining the sidelink transmission is achieved.