Pure Granules into top hopper, adjust primary, intermediate or last stage vibration feeder, then medicine granules in hopper drop into material-dropping mouth continuously in line along vibration trough slab. Granules drop into checking passageway one by one, infrared ray dynamic scanning transducer will catch signals about granules and put them into FPGA high-speed microprocessor, counting will be finished with the cooperation of electric circuit and programme.