To provide a working vehicle which can prevent the contact a machine body with an obstacle when traveling.SOLUTION: A working vehicle comprises: steering wheels 11 steered by a steering device of a traveling vehicle body 1； a working part 2 connected to a rear part of the traveling vehicle body 1 so as to be liftable； a position information acquisition device for acquiring position information； and a control part for detecting a steering angle of the steering wheels 11, driving the steering device on the basis of the detected steering angle and the position information acquired by the position information acquisition device, and controlling the automatic traveling of the traveling vehicle body 1. A plurality of obstacle sensors 901 for detecting an obstacle existing ahead and in a turning direction of the traveling vehicle body 1 are arranged. When the steering angle of the steering wheel 11 reaches an angle for allowing turning traveling, sensitivity for detecting the obstacle ahead of the machine body is lowered, and sensitivity for detecting the obstacle in the turning direction is raised.SELECTED DRAWING: Figure 4【課題】走行中に機体と障害物の接触を防止することができる作業車両を提供する。【解決手段】走行車体１の操舵装置により操舵される転舵輪１１と、走行車体１の後部に昇降自在に連結される作業部２と、位置情報を取得する位置情報取得装置と、転舵輪１１の舵角を検出し、検出した舵角と位置情報取得装置が取得した位置情報とに基づき操舵装置を駆動して走行車体１の自動走行を制御する制御部を備えた作業車両において、走行車体１の前方及び旋回方向にある障害物を検出する障害物センサ９０１を複数設け、転舵輪１１の舵角が旋回走行となる角度以上になると、機体前方の障害物を検出する感度を下げ、旋回方向の障害物を検出する感度を上げる。【選択図】図４
