WORKING VEHICLE AND TRACTOR

A working vehicle (1) includes: a clutch (5d) displaceable to a connected state in which power is transmitted to a drive (7), a disconnected state in which the transmission is disconnected, and a half-clutch state in which power is slidably and partly transmitted to the drive (7); a detector (53) that detects an operation position of a clutch pedal (32A) and outputs a detected value corresponding to the operation position detected; a control device (40) that brings the clutch (5d) into the half-clutch state if the detected value corresponds with a threshold, and brings the clutch (5d) into the disconnected state if the detected value is less than the threshold and into the connected state if the detected value is greater than the threshold, and vice versa; and a change unit (40A) that changes the threshold to a different value in accordance with an operation on the operation member (45).