Problem to be solved: to provide an underground stem crop harvester capable of restraining inexpensively, reducing the burden on the operation, and harvesting the crops properly without composing the constitution of the frame.A traveling section 18 having a traveling device 181 which is located on both sides in the traveling direction of the vehicle body a and is capable of traveling through the ridgeIt is vertically movable by a connecting shaft 23 which is connected on the running part 18；The pulling and conveying portion 9 having a conveyor belt 20 for pulling the stem of the underground stem crop on the ridge and pulling the right and left sides against the direction of advancement and pulling it to the rear diagonally side and carrying it back to the rear sideIt is positioned in front of the pulling and carrying part 9A stalk position detecting part 22 for detecting the position of the stem of the stem of the underground stem crop on the ridge and the right and left positions of the stem on the ridge of the drawing carrier partA traveling clutch operation unit 16 for operating the traveling clutch capable of interrupting transmission to the traveling device 181 by detecting the stalk position detecting part 22 and the followingWas provided.Diagram【課題】機体の構成を複雑にすること無く、安価に抑制し、操作に係る負担を軽減し、適正に作物を収穫できる地下茎作物収穫機を提供する。【解決手段】車体Ａの進行方向両側に位置させると共に畝を跨いで走行することができる走行装置１８１を有した走行部１８と、前記走行部１８上で連結させる連結軸２３によって上下回動可能にし、畝上の地下茎作物の茎を進行方向に対する左右両側を挟持して後方上斜め側に引き抜くと共に後方側へ搬送するコンベアベルト２０を有した引抜搬送部９と、前記引抜搬送部９の前方に位置し、前記引抜搬送部９に対して畝上の地下茎作物の茎の進行方向左右の位置を検知する茎位置検知部２２と、前記茎位置検知部２２の検知によって前記走行装置１８１への伝動を断続可能な走行クラッチを動作させるための走行クラッチ動作部１６と、を備えた。【選択図】図１
