The invention discloses an agricultural fertilizing device, and relates to the technical field of agricultural machinery. A box shell is fixedly installed at the upper end of a trolley, the interior of the box shell is divided into three spaces of a stirring cavity, a first discharging cavity and a second discharging cavity through a first partition plate and a second partition plate, a rotatableanti-blocking assembly is fixedly installed at the position, located on one side of the first discharging cavity and one side of the second discharging cavity, of the top of the box shell, the anti-blocking assembly is rotatably connected with a mixing assembly through a first belt, and a discharging assembly is fixedly installed at the position, located below the anti-blocking assembly, of the interior of the box shell. Compared with a traditional mode, the agricultural fertilizing device has the advantages that manual stirring and mixing are avoided, hand skin is protected against damage, human body safety is guaranteed, mixing efficiency is improved, labor intensity is reduced, in addition, caked fertilizers can be crushed, so that the crop absorption effect is guaranteed, the fertilizer spreading uniformity is further improved, the problem of discharging blockage is avoided, and the convenience is improved.