The utility model provides a conveying device for a hydraulic drilling tool, which is used for connecting a single conveying drill tool with a deviated well drill rig. The device consists of a variable amplitude mechanism, a telescopic mechanism, a clamping mechanism, a slope overturning mechanism and pipe racks; a base assembly of the variable amplitude mechanism is provided with a main beam; one end of a support rod is articulated with the base assembly; the other end of the support rod is articulated with a sliding block; one end of a hydraulic cylinder is fixedly arranged on the base assembly; the other end of the hydraulic cylinder is articulated with the middle part of the support rod; a large telescopic arm is sleeved in the main beam; a small telescopic arm is sleeved in the large telescopic arm; a guide rail is arranged on the upper surface of the main beam; a front slope support seat and a rear slope support seat are connected onto the guide rail of the main beam; and two rows of pipe racks are respectively arranged at two sides of the base assembly. The conveying device provided by the utility model has the advantages that the variable amplitude angle is large; the telescopic distance is long; the problems that the position for connecting the single drilling tool is unfixed after the amplitude of the deviated well drill rig is continuously changed and the like can be solved; and the conveying device adopts full hydraulic control, thus, the labor intensity can be reduced.