To provide a work vehicle in which travel operation can be facilitated.SOLUTION: A work vehicle comprises: a travel operation device 9; left/right travel devices; a side brake 60 for individually braking left/right travel devices; and a brake control part 22 for controlling the side brake 60 according to the operation state of the travel operation device 9. The travel operation device 9 comprises a turning operation tool 91 which is operated for turning a machine body, and comprises an operation amount detection part 18 for detecting a turning operation amount of the turning operation tool 91. When the turning operation amount detected by the operation amount detection part 18 is equal to or greater than a prescribed turning operation amount, the brake control part 22 causes the side brake 60 to act the travel device on inside of the turning out of the left/right travel devices.SELECTED DRAWING: Figure 4【課題】走行操作が簡素な作業車を提供する。【解決手段】走行操作装置9と、左右の走行装置と、左右の走行装置を各別に制動するサイドブレーキ60と、走行操作装置9の操作状態に応じてサイドブレーキ60を制御する制動制御部22とを備える。走行操作装置9は、操作されることにより機体が旋回する旋回操作具91を含み、旋回操作具91の旋回操作量を検知する操作量検知部18を備え、操作量検知部18により検知された旋回操作量が所定の旋回操作量以上である場合、制動制御部22は、左右の走行装置のうち、旋回内側の走行装置にサイドブレーキ60を作用させる。【選択図】図4