PURPOSE: To provide hose pulley mounting structure wherein a work to adjust the vertical position of a hose pulley for the porloose of regulating the tension of an oil pressure hose may be carried out simply.

CONSTITUTION: A longitudinally long oblong hole 4 is formed in the vertical piece of a pulley bracket 3. A support plate 7 having a pulley support shaft 6 to support a hose pulley 5 rotatably around a horizontal axis is fixed by a fixing bolt 9, inserted in the oblong hole 4, in a state to be overlapped with the vertical piece 3b. An adjust bolt 13 for adjusting a pulley position is inserted in a screwed-in state in the screw hole 12a of a boss 12, formed to the pulley bracket 3, from below. The tip of the adjust bolt is brought into contact with a stopper 14 arranged to a support plate 7. By rotating the adjust bolt 13, the vertical position of the hose pulley 5 is adjusted to regulate the tension of an oil pressure hose 11.