PROBLEM TO BE SOLVED: To provide a farm work robot capable of smoothly approaching a work route by reliably grasping the position on a travel route.SOLUTION: A farm work robot is configured by comprising a travel device (T) which performs working travel on a work route (L) and moving travel on moving route (F), a work device (W) which performs farm work of crop cultivation, and a control unit for controlling the travel device (T) and the work device (W), is provided with a travel state determination means for determining whether the travel device (T) is performing working travel or moving travel, and an object detection member (S) for detecting the presence of an object in front of and behind the vehicle and capable of switching the left and right detection width. The travel state determination means narrows the detection range of the object detection member (S) when working travel has been determined, and widens the detection range when moving travel has been determined, as well as enabling the smooth approach onto a work route (L) by controlling the travel device (T) during detection by the object detection member (S) so as to stop or retreat.SELECTED DRAWING: Figure 3【課題】移動通路上の確実な位置把握により、作業通路への円滑な進入を可能とする農作業ロボットを提供する。【解決手段】農作業ロボットは、作業通路(L)の作業走行と移動通路(F)の移動走行を行う走行装置(T)と、作物栽培条の農作業を行う作業装置(W)と、これら走行装置(T)と作業装置(W)を制御する制御装置とを備えて構成され、前記走行装置(T)が作業走行中か移動走行中かを判定する走行状態判定手段と、左右の検知幅を切替え可能に機体前方の物体の有無を検知する対物検知部材(S)とを設け、前記走行状態判定手段が作業走行の判定の場合に前記対物検知部材(S)の検知範囲を狭くし、また、移動走行の判定であれば検知範囲を広くするとともに、前記対物検知部材(S)の検知時に走行装置(T)を停止または後退可能に制御することにより、作業通路(L)への円滑な進入を可能とするものである。【選択図】図3