To provide a setting device which can easily change set values of devices mounted on a service vehicle and a setting change unit equipped with the setting device.

This setting device 70 is used to change the set values of the devices mounted on the service vehicle so as to support the operation of the service vehicle and is equipped with a change information generating means 72a which generates change information including change data for changing the set values of the devices and object data specifying change objects according to change contents of set values of devices which are inputted from outside and input data indicating the change objects and a change information output means 72b which outputs the change information generated by the generating means 72a.