The utility model discloses spout medicine formula weeding robot, including automobile body, explosive box, arm, nozzle, spray tube and pump, the automobile body plays the effect of bearing, and the bottom is equipped with the wheel that is used for the walking, the explosive box sets up the top of automobile body, the arm sets up the top of automobile body, the nozzle sets up on the arm, the spray tube, one end is connected with the explosive box, and the other end is connected with the nozzle, the pump is installed on the spray tube. The utility model discloses can be in nimble removal in the transformer substation station, during the weeding, will weed the medicine through spray tube, pump and nozzle and spray on weeds to through control machinery arm removal nozzle, can carry out accurate medicine to weeds and spray, the medicine that sparingly weeds, weeds are under the effect of weeding medicine, and withered dying is hurried gradually, additionally, the utility model has the advantages of being simple in structure and convenient in operation, work efficiency is high, can replace artifical the weeding, has greatly lightened staff's intensity of labour.