A fine coffee bean screening system suitable for screening a plurality of coffee beans, the fine coffee bean screening system comprising a controller and a plurality of coffee bean screening devices. The controller is adapted to send a first control command and a second control command. The coffee bean screening device is coupled to the controller and receives the first control command and the second control command. Wherein, the coffee bean screening device receives the first control command to filter the coffee beans in a first ratio； and when the coffee bean screening device receives the second control command, the coffee beans are screened in a second ratio.一種精細咖啡豆篩選系統，適於篩選多個咖啡豆，該精細咖啡豆篩選系統包括一控制器及多個咖啡豆篩選裝置。控制器，適於發送一第一控制指令與一第二控制指令。咖啡豆篩選裝置與該控制器連接，並接收該第一控制指令與該第二控制指令。其中，當該咖啡豆篩選裝置接收該第一控制指令會以一第一比例篩選該咖啡豆；當該咖啡豆篩選裝置接收該第二控制指令會以一第二比例篩選該咖啡豆。
