To provide a fish body conveying machine that can carry raw materials (fish bodies) in no use of conveying belt with high operational function surpassing that of the conventional belt conveyer .

In the fish body-conveying machine 10 that has a pair of the mutually opposing roller groups R, L comprising each a plurality of fish bodies-introducing rollers 11, fish press-carrying rollers 12-1 to 12-9 and fish bodies outlet roller 13. Uneven patterns and grooves are formed on the surfaces of individual rollers according to the fish body sizes and their uses and simultaneously the surface-processed rollers are separately driven and the intervals between the mutually opposing rolls are made variable according to the fish body sizes.