The invention provides fertilization equipment used for agricultural machinery and a fertilization method used for the agricultural machinery, and relates to the technical field of agricultural scarification and fertilization. The fertilization equipment used for the agricultural machinery comprises a device shell, a stirring mechanism, an even blanking mechanism and a scarification mechanism, wherein the even blanking mechanism is installed below the stirring mechanism, the scarification mechanism is installed on the right side of the even blanking mechanism, a stirring chamber is fixedly connected with the top of the device shell, a transmission chamber is arranged on the bottom of the stirring chamber, a discharging opening is formed in the position, close to the left end of the transmission chamber, on the bottom of the stirring chamber, a servo motor is installed on the top of the stirring chamber, one end of a stirring shaft is connected with an output end of the servo motor, theother end of the stirring shaft extends to an inner cavity of the transmission chamber, a stirring rod is welded to the stirring shaft, and a feeding cylinder communicates with the top of the stirring chamber. According to the fertilization equipment used for the agricultural machinery and the fertilization method used for the agricultural machinery, through various linkage parts, functions of stirring, blanking, scarification, earthing and the like are integrated into the whole device, operation is simple and convenient, the workload is small, fertilization is made to be easier, and the fertilization quality is guaranteed at the same time.