High-precision powder weighing scale is a kind of high-precision and small-flow powder weighing scale developed and designed by our company according to the needs of customers. High-precision feeding metering control is realized by double-channel and double-precision feeding structure. The high-precision powder weigher with this feeding structure has reasonable structure, fast feeding speed, accurate control and high metering accuracy, which is helpful to improve the efficiency of powder metering. It is especially suitable for industrial metering, batching and other production processes requiring high metering accuracy. High precision powder balance is a batch quantitative feeding equipment, suitable for small flow, high precision, intermittent or batch batch batching applications. The system measurement error is less than 20g, the system dynamic burden error is less than 20g, and the weighing measurement range is 0.01-0.5T/H.