Using computer automatic batching, the batching accuracy is good, the quality is stable, the effect is good, the speed is fast, the economy is practical, and the mechanization and automation degree are high. The microcomputer controller adjusts the belt speed according to the size and direction of the calculation deviation to achieve the set target value, thereby achieving quantitative feeding. After the measurement of each material is completed, it enters the powder specific mixing machine to evenly mix the various materials (if processing bio organic powder fertilizers, bio microbial agent supporting equipment can be added), and enters the automatic powder packaging scale for finished product packaging and storage