A crane spreader for use in lifting a container includes an attachment unit, a head block, a frame unit, a position adjustment unit and a fixation unit. The attachment unit detachably attaches the crane spreader to an upper surface of the container. The head block has a pulley connected to a trolley of a crane through a cable and coupled to the attachment unit to restrict a horizontal movement the attachment unit with respect to the head block. The frame unit is supported by the head block to be horizontally movable with respect to the head block, the frame unit being disposed below the head block with a gap therebetween. The position adjustment unit aligns the frame unit with the container by displacing the frame unit with respect to the attachment unit. The fixation unit engages the container with the frame unit.