A kind of improvement of harvester for rhizome crops,Include: a car body,The car body is the structure of a rice cutting machine,The car body be equipped with a Drive Section,One power part,One chassis mould group; The power part provides power to the chassis mould group and then makes the car body mobile; The Drive Section provides user and operates the car body according to designated position displacement; For a crawler belt, it can drive the car body mobile to the chassis mould group; Its characteristic is in what: a bonding pad is equipped on the car body,Bonding pad above-mentioned is arranged a tubers and harvests mould group,Tubers harvesting mould group can harvest root crop.一種根莖類作物收穫機之改良,包含有:一車體,該車體為一割稻機的結構,該車體上設有一駕駛部、一動力部、一底盤模組;所述的動力部提供動力至該底盤模組進而讓該車體移動;該駕駛部提供使用者操作該車體依據指定位置位移;所述的底盤模組為一履帶其可帶動該車體移動;其特徵在於:該車體上設有一連接區,前述的連接區設置一根莖類採收模組,該根莖類採收模組能對根莖類作物採收。