The invention relates to a device for the dynamic monitoring of the inclination of a forest vehicle travelling on a particular terrain, comprising: an inclinometer (10) for providing data relating to the inclination of the vehicle； a GPS device (20) for providing data relating to the position of the vehicle on said terrain, said inclinometer (10) and GPS (20) being installed on board the vehicle and connected to an on-board processing unit (30) configured, at given intervals, to (i) obtain vehicle inclination data from the inclinometer, (ii) compare these vehicle inclination data to pre-determined inclination thresholds, (iii) generate an alarm signal if the data are above the pre-determined inclination thresholds； obtain vehicle positioning data from the GPS, and (iv) record each vehicle inclination and positioning data reading in a register (40) according to a pre-determined system； means for connecting to an acousto-optic warning device (60) that can be activated in response to the generation of the alarm signal； and means for connecting to display means (50) for displaying the vehicle inclination data, said display means being visible to the user of the vehicle.
