This is an infrared optical sorting machine. The combination of Hawk-eye recognition technology with cloud image high-speed capture and processing technology can precisely recognize tiny spot or light-yellow spot on rice and some other impurities that normal CCD color sorter cannot recognize. It can also reject and separate yellow rice and chalky rice, light yellow rice and dark yellow rice, yellow rice and black rice. Furthermore, it can easily work on full chalky rice, side chalky rice or middle chalky rice, and reject paddies with precise classification and optimized carryover ratio.