Provided is a work vehicle in which a laser radar and an ultrasonic sensor are provided in order to detect an obstacle, the work vehicle being capable of reliably avoiding an obstacle collision regardless of whether the laser radar or the ultrasonic sensor is selected. The work vehicle is provided with a first obstacle detection unit that detects an obstacle using a laser radar unit; a second obstacle detection unit that detects an obstacle using the ultrasonic sensor unit; a measurement environment determination unit that determines the quality of the measurement environment of the laser radar unit; vehicle speed management unit, managing the first vehicle speed and the second vehicle speed, wherein the first vehicle speed is a vehicle speed capable of stopping the vehicle body in front of the obstacle in response to the obstacle being detected by the first obstacle detection unit, and the second vehicle speed is a vehicle speed slower than the first vehicle speed and capable of stopping the vehicle body in front of the obstacle in response to the obstacle being detected by the second obstacle detection unit; and a travel control unit that causes the vehicle body to travel at a second vehicle speed when it is determined that the measurement environment is poor while the vehicle body is traveling at the first vehicle speed.