An anti-collision system for an agricultural vehicle includes a first sensor for detecting the dimensions of a clear-space profile available in front of the vehicle in the direction of travel, a second sensor for detecting the dimensions of a load moved by the vehicle, and a processing device which compares the dimensions of the clear-space profile with the dimensions of the load on the basis of the signals of the first and second sensors and outputs a warning signal if a collision between the load and a boundary of the clear-space profile is imminent.
