Work vehicle

A work vehicle is disclosed with an information displaying device (50) preventing set information corresponding to a setting screen displayed on a display (36) from being erroneously changed even while permitting an operation for switching to and displaying one among a plurality of set screens on the display (36). A setting information processing unit (P) of the information displaying device (50) includes setting screen displaying means (54) for switching the setting screen by the input of a first operation information item and displaying same in a transition display mode, and setting information changing means (55) for performing a process in an information change mode for permitting a change to the set information corresponding to the setting screen, by the input of a second operation information item. When it is determined that the second operation information item is inputted in the information change mode, a process for restoring the transition display mode from the information change mode is performed.