The utility model relates to a mine device, concretely a small power single-rope winding traction device of a coal mine underground inclined drift, which solves the problem of the prior coal mine underground large inclined-angle fully mechanized roadway that: lifting and lowering the heavy device is limited by the surrounding environment and the relational condition and no matched traction device is present. The device comprises a traction device fixation platform; a winch, a fixed pulley block and a fixed pulley type wire rope head fixation device on the traction device fixation platform; a V-shaped anti-slip groove below the platform bottom plate, a compression hitch on the platform bottom plate, wherein the front end of the bottom plate is in the upwarping shape; also comprises a movable pulley block connected with the wire rope and wheels below the movable pulley block. The traction force of lifting and lowering the heavy devices is increased on the basis of keeping the traction force of the prior traction winch, so as to solve the puzzle of hoisting the train on the large inclined-angle fully mechanized roadway.