To exactly sort objects to be sorted by preventing the objects to be sorted from bestriding the boundaries of the respective windows of a CCD camera.

This sorting machine has a belt conveyor 51 which is capable of transporting and releasing the objects 100 and 101 to be sorted, the CCD camera 60 which picks up the images of the objects with the plural windows 70 lined up in a transverse direction of the transportation, air nozzles 53 which control courses R1 and R2 of the objects passing the windows 70 in accordance with the result of image pick-up at the respective windows 70, first and second chutes 52 which are capable of freely receiving the objects according to the courses R1 and R2, etc. The surface of the belt 10 is provided with a plurality of partition members 12 along the circumferential direction of the belt 10 to partition the surface of the belt 10 to plural loading section 13. The loading section 13 are arranged in correspondence to the windows 70 in the release direction of the objects. As a result, the released objects are surely passed in the inside of the windows 70.