Fertilizer preparation equipment is provided. The equipment includes an upper station platform, a material storage device, a metering device and a stirring device. The upper station platform, the material storage device, the metering device and the stirring device are arranged in order from top to bottom. The material storage device includes at least two material storage bins. Top walls of the material storage bins are provided with first openings or feeding ports. According to the equipment, a worker opens bags containing chemical fertilizer materials at the upper station platform, the chemical fertilizer materials are allowed to pass through the material storage device, the metering device and the stirring device in order by utilizing the action of gravity so as to achieve chemical fertilizer production, the equipment has no requirement on air impermeability, is free of much raised dust caused by conveying utilizing draught fans, and does not need screws, lifting ropes, chains, or other conveying devices, and material particle integrity is good.