Abstract: An industrial truck with a forward propulsion unit for horizontal movement of the industrial truck, a driver's platform that can be raised or lowered by a vertical propulsion unit, at least one control device to control the vertical propulsion unit and the forward propulsion unit, and at least one blocking device that can be adjusted as necessary to close or open an entrance to the driver's platform. The control device is switched so that, depending on the level of the driver's platform and the position of the blocking device, either all the functions of the forward propulsion unit and of the vertical propulsion unit are enabled, or all the functions of the forward propulsion unit and of the vertical propulsion unit are disabled, or a raising of the driver's platform is disabled, while a lowering of the driver's platform and/or a horizontal movement of the industrial truck is possible.