To allow a worker to operate lightly by utilizing a hydraulic apparatus, so as to reduce the fatigue, in an elevating device of heavy article.

This elevating device is made possible to drive to rotate by a main pulley 5 hydraulic moter directly and coaxilly, or indirectly, in which the force of a worker 11 is made to operate an operation rope 12 to rotate a rotary type servo valve which is installed directly and coaxially or indirectly to the main pully 5. Since the hydraulic motor is rotated counterclockwise by rotating the rotary type servo valve counterclockwase, by rotating the servo valve by an operating liquid delivered from a hydraulic pressure source 31, a heavy article 1 can be moved up and down by driving and rotating the main pulley 5 by the hydraulic motor directly or indirectly. In this case, the operation to drive and rotate the rotary type servo valve is carried out by fixing an operation pulley 13 to the driving shaft of the rotary type servo valve, and operating the operation rope 12 hung on the operation pulley 13.