The invention relates to a staged packaging type potato
combine harvester. The harvester comprises a rack (13); a roll shaft
chain type staging device (35), a first stage soil and potato separation and conveying device (34) and a second stage soil and potato separation and conveying device (12) are arranged on the rack (13); ground wheels (11) are arranged at the lower part of the rack (13); a belt scraper type lifting
elevator (16) is arranged on one side; a material receiving and packaging device (22) is arranged on the roll shaft
chain type staging device (35); a transverse chain rod type conveyor (17) is arranged at the back end of the second stage soil and potato separation and conveying device (12); an elastic stripper rod pick-roll type two-stage stalk separation device and rubber belt type two-stage stalk separation device are further arranged between the first stage soil and potato separation and conveying device (34) and the second stage soil and potato separation and conveying device (12); a digging
shovel frame (3) and the rack (13) are articulated through a traction rod (31); a
copying soil breaking roll (1), a soil
cutting disk (2), a digging
shovel (32) and a soil loosening transition tooth (4) are arranged on the digging
shovel frame (3); and the upper part of the digging shovel frame (3) is connected with a lifting rod of a lifting cylinder (29). The harvester is in
tractor traction type and can complete the procedures of digging of potato crops, soil and potato separation, separation of stalk, weeds and a ground film, conveying and lifting of potatoes, staging of potatoes, collection, packaging and the like of potato crops.