A conveyor and a deposition apparatus, and a maintenance method thereof are disclosed. The conveyor includes a frame; a lower support mechanism for supporting a carrier on which is longitudinally mounted a substrate and for transferring the carrier; and an upper support mechanism for supporting the carrier, in which the frame comprises a lower frame and an upper frame, and in which the lower support mechanism is provided on the lower frame and the upper support mechanism is provided on the upper frame, the upper frame and the lower frame being configured to be separately movable. Therefore, with the rotational movement of the upper frame, it is possible to arrange a cathode member in a space formed above the lower frame. This can make the spacing between the deposition treatment passage and the carrier transfer passage small. As a result, it is possible to make an inner court of the deposition apparatus narrow. Therefore, in the conveyor capable of transferring a carrier and in the deposition apparatus including the conveyor and further including a vacuum treatment apparatus and a transfer system, it is possible to make the installation area thereof small and narrow.