A battery pack according to an embodiment of the present invention comprises: at least one battery module; electric components electrically connected to the at least one battery module; a tray for supporting the at least one battery module and the electric components on the upper surface of the tray; and a pack cover including an edge facing the edge of the tray and coupled to the tray to cover the battery module and the electric components, wherein the tray may include a tray stopper arranged to be upwardly bent from the edge of the tray and to support the edge of the pack cover in a direction from the outside to the inside.