To change output characteristics in forward and reverse travels by changing displacement of a hydraulic pump, and to provide efficient output characteristics in a hydraulic continuously variable transmission device.

In the hydraulic continuously variable transmission device which is comprised of: a hydraulic pump 10; and a variable displacement hydraulic motor 11, and includes control means 4, 10 performing displacement control according to load received by the hydraulic continuously variable transmission device, a pressure control valve 04 is connected to a control pressure parts of the control means 4, 10 performing displacement control according to pressure in a hydraulic circuit 13 in a delivery side of the hydraulic pump 10, and displacement control of the variable pump and the motor 11 is made.