In order to solve the problems that solid fertilizer is poor in fertilization uniformity on dry and hard land; the fertilization depth is not high. The utility model provides a fertilizing device. wherein the carbon storage box and the motor are fixedly arranged on the rack, the carbon feeder is fixedly arranged on the lower portion of the carbon storage box and provided with a conical front end,the gear shaft is arranged between the carbon storage box and the carbon feeder, a hollow cavity is formed in the carbon feeder, a plurality of through holes are formed in the wall of the cavity, thefront end of the carbon feeder is conical, and the conical front end is horizontally or obliquely arranged downwards; the shaft portion of the gear shaft is a hollow shaft body, one end of the hollowshaft body is fixedly connected with the rear end of the carbon feeder and communicated with the hollow cavity, the other end of the hollow shaft body is communicated with the bottom of the carbon storage box, and a transmission gear meshed with the gear portion of the gear shaft is arranged on the motor. The fertilizing device provided by the utility model is reasonable in structure, simple and easy to operate, and has the advantages of strong adaptability, good universality and wide application range.