A conveyance apparatus has a conveyance carriage for conveying a vehicle body, a vehicle-body support, a synchronous traveling carriage capable of traveling in synchronization with the conveyance carriage from a start point position to an end point position, a lifter provided with an elevating base that ascends via an aperture arranged on a floor surface of the conveyance carriage, and an elevating table for supporting an engine of an engine carrying-in carriage that stops at a fixed stop position and is lifted up to a predetermined height by the elevating base of the lifter.