The present invention comprises: a connection device consisting of a stalk shattering machine connected to the three-point linkage of a tractor and a machine frame connected to the upper support device of the three-point linkage of the tractor； a frame which is connected to the three-point linkage of the connection device and is composed of an upper frame and a lower frame integrated with the upper frame with a clearance therebetween, wherein the upper frame is composed of a front coupling bracket hinge-coupled to the stalk shattering machine and a rear coupling bracket hinge-coupled to a lifting hydraulic device and allows the front and rear coupling brackets to be placed on the top surface； a flat plate shaped frame having the upper part integrated on the side and rear surfaces of the frame； and an excavation part which is composed of a support having the top connected to the rear surface of the flat plate shaped frame, and a shovel composed of a rectangular front blade formed on the bottom of the support and inclined in a driving direction, and a triangular blade formed on the side surface of the front blade to be inclined downward and of which the bottom surface is horizontally maintained during a harvesting work. The present invention can harvest tuber crops while shattering stalks simultaneously by being attached to the stalk shattering machine for shattering the stalks of the crops, can harvest the crops effectively according to the furrow environment of a field by eccentrically moving the excavation part from side to side according to the furrows of the field during an initial or a final harvesting work, and can alleviate the vibration and shock of the stalk shattering machine by hinge-coupling a shock absorber to the rear part of the stalk shattering machine.본원 발명은 트랙터의 3점 지지장치에 연결되는 작물줄기 분쇄장치 및 트랙터의 3점 지지장치의 상부지지장치에 연결되는 장치프레임으로 구성되는 연결장치와； 작물줄기 분쇄장치에 힌지 결합되는 전결합브라켓트와, 승강유압장치에 힌지 결합되는 후결합브라켓트와, 전·후결합브라켓트가 상부면에 구성되는 상부프레임과； 상부프레임에 일체형으로 이격 구성되는 하부프레임으로 구성되어
