A system and a method are disclosed for stabilization of a mast (3) on a moving carrier, for example a vehicle. An actuator device (6′) is connected to the mast and allows the mast (3) to pivot with its longitudinal direction relative to the carrier (2), about at least one pivoting axis. A mast sensor device determines the position of the mast (3) relative to a predetermined absolute spatial direction, and supplies this to an electronic control device, which compares the position of the mast with a predetermined set value and derives a manipulated variable for the actuator device from this, in order to stabilize the longitudinal direction of the mast. A securing device (7) blocks the mast if a predetermined acceleration value is exceeded.