The invention belongs to the field of food processing, and specifically relates to a device for accurately sorting foods. The device comprises a metal detection device, a weighing device and a checkout device used for specification-based collection according to results measured by the detection device and the weighing device; the metal detection device comprises a transmission rack with a first conveyor belt, a metal detection rack erected on the first transmission rack through bridge bars arranged on both sides of the first transmission rack, and a metal detector which is arranged on the metal detection rack and located above the middle section of the first conveyor belt; and the weighing device comprises a weight station with a second conveyor belt, and a weighing controller arranged onone side of the weight station, and the checkout device comprises a transmission rack, a conveyor belt, safe edges and a checkout plate. The device provided by the application has the advantages of simple structure, stable and precise sorting, high sorting efficiency and low probability of false detection.