To reduce the manufacturing cost of a hydraulic structure and to easily simplify the same by connecting a hydraulic elevating pump for ascending and descending a working machine, to a charged oil pressure circuit of a hydraulic continuously variable transmission.

In a control working vehicle comprising a hydraulic continuously variable transmission 32 in a transmission case 6, a hydraulic elevating pump 40 for ascending and descending a working machine 29 is connected to a charged hydraulic circuit 42 of the transmission 32 for supplying the charged oil pressure from the elevating pump 40 to the transmission 32. A charging pump of the transmission 32 is omitted, thus reducing the manufacturing cost of a hydraulic structure and simplifying the same, and further an air-cooling fan 45 is mounted on a charging pump shaft 44 of the transmission 32, and the air-cooling fan 45 is mounted by utilizing the undesired charging pump shaft 44 for cooling the transmission case 6 and the transmission 32 only by adding the air-cooling fan 45, whereby a rise of oil temperature prevention structure can be simplified and cost can be reduced.