The present disclosure relates to a package box and a liner for the same. The package box includes a hexahedral outer box body; a cover configured to cover an opening of the outer box body; a substantially hexahedral liner placed in the outer box body and having six side walls, at least one of which side walls is configured to be a movable side wall, each movable side wall being slidably coupled with the adjacent four side walls to change the volume of the liner; and at least one resilient member disposed between each movable side wall and the wall of the outer box body facing the movable side wall, or between each movable side wall and the cover respectively, to drive each movable side walls to move towards and to get in close contact with articles placed within the liner.