Abstract: A battery pack includes a battery body, a housing, and a heat sink. The housing surrounds a part of the surface of the battery body. The heat sink is disposed on the housing. A bottom surface of the heat sink abuts against a bus board disposed on the upper end of the battery body, and the heat sink is in thermal contact with a module electrode at the upper end of the battery body. In the battery pack provided by the present application, heat dissipation around the battery body could be achieved, heat generated by a tab or heat conducted by the battery body to the tab could also be guided outwards, so that all-round heat dissipation around the battery pack is achieved. The battery pack provided by the present application is suitable for the unmanned aerial vehicle and meets the high heat dissipation requirement.