Potato digger with rear unloading that can be mounted on tractors equipped with three point linkage and power takeoff (PTO). The machine is built in the working dimensions of cm 70 for single row, cm 130 and 150 for two rows. The main points that allow a good operation on any planes or hills are: 1- digging plowshare made up of more interchangeable blades and 2 lateral grass-cutting discs. 2- Protection and clogging kit made up of a transversal moving comb, located between the plowshare and the conveyor band that eases the earth introduction on the band, and of 2 mobile cleaners that prevent the weed-cutting discs and the conveyor band from clogging. 3- Conveyor band made up of two steel rods and supported by rubber rollers with bearings. 4- Rear vibrating sieve that allows a better separation of potatoes from the earth.