PROBLEM TO BE SOLVED: To achieve improvement of safety in traveling.SOLUTION: A work vehicle comprises: a connection member which is capable of freely changing a pair of left and right brake operation tools for braking left and right wheels respectively, between a connection state such that the operation tools are integrally connected and a release state such that the connection is released； connection state detection means 43 which detects whether the operation tools are in the connection state or in the release state； and traveling control means H which controls a traveling state of a vehicle body on the basis of a command from a manual operation type command means A. The traveling control means H is capable of freely performing changeover between a normal mode in which a traveling state is controlled to be a target traveling state commanded by the command means A and a vehicle speed suppression mode in which the traveling state is controlled to be a traveling state at speed lower than the commanded vehicle speed. When the traveling state is set to the vehicle speed suppression mode, the traveling control means maintains the vehicle speed suppression mode when a prescribed release operation is not performed.SELECTED DRAWING: Figure 4【課題】走行上の安全性の向上を図ることが望まれていた。【解決手段】左右車輪を夫々制動する左右一対のブレーキ操作具を一体的に連結する連結状態と連結を解除する解除状態とに切り換え自在な連結部材と、連結状態であるか解除状態であるかを検出する連結状態検出手段４３と、人為操作式の指令手段Ａの指令に基づいて車体の走行状態を制御する走行制御手段Ｈとを備え、走行制御手段Ｈは、指令手段Ａにて指令された目標走行状態になるように制御する通常モードと、指令された車速よりも低速の走行状態になるように制御する車速抑制モードとに切り換え自在であり、車速抑制モードに設定されているときに、所定の解除用操作が行われなければ車速抑制モードを維持する。【選択図】図４
