The utility model discloses a high adjusting device of beam -pumping unit drive rope belongs to the oilfield machine field. The device includes: the base of the vertical setting of back lateral wall on oil pumping machine horse head is provided with the slide rail along vertical orientation on the preceding lateral wall of base, the baffle is connected with the lower extreme of base, can follow the slider of slide rail endwise slip, be provided with opening drive rope hanging slot up on the preceding lateral wall of slider, the slider middle part is provided with the internal thread hole alongthe axial, adjust the jackscrew, pass to the screw thread transmission internal thread hole to the lower extreme offsets with the baffle. The device has characteristics such as the regulative mode issimple, labour saving and time saving, regulation precision height.