The pumpkin seed hulling machine consists of 2 parts: cleaning and sorting units, shelling and sorting units.

(1) The cleaning and sorting machine can clean the pumpkin seeds and watermelon seeds, remove various impurities, and then divide the seeds into 7 grades according to size, so as to carry out shelling and sorting.

(2) The shelling and sorting machine can respectively carry out shelling, peeling and sorting of the pumpkin seeds and the watermelon seeds, etc., and the seeds which are not released can be automatically returned to the shelling machine for shelling again until they are disengaged.