1. Leading LED light source technology,featured with high efficiency, long service life, strong anti-interference ability 2. Adapt 2048-pixel high-speed high resolution CCD sensor and high-precision camera lens;can accurately identify as small as 0.02 mm2 heterochromatic areas and easily identify light yellow, belly-white and small disease spots. 3. Adopt high-quality, high-frequency, Long service life, low air consumption, can guarantee maximum output, low carryover ratio and low failure rate. 4. The unique direct air ejector significantly reduces air resistance and air consumption, responds more quickly, and creates better aiming accuracy, can reduces carryover ratio as well. 5. The ARM+FPGA double core system can enable top-level computing and processing ability. 6. Specific optimum corresponding working mode designed for different kinds of rice, one machine can sort different kinds of rice. 7. New power supply system, low energy consumption, can reduce cost, and can help to avoid adverse effect caused by sudden voltage change, therefore to realize long-term stable operation.