Weighing and reducing scale is a high-precision micro-dynamic electronic scale with a measurement accuracy of one thousandth. It consists of a support frame, a bucket body, a load cell, a weighing instrument, an electromagnetic vibrating feeder, etc., and comes with a calibration device, which can be calibrated at the right time. Supported by three sets of load cells, the inlet and outlet ports are softly connected and automatically unloaded without affecting accuracy. The weight reduction scale can weigh the total weight of the material and then output the material according to the set weight. The equipment can provide a certificate of qualification with the national statutory qualification.