Method for managing a fleet of self-guided agricultural vehicles each comprising a computer and means for the real-time determination of the coordinates of its current position, said method comprises: a) an initial step of calculating the topology of the area of movement, carried out by a computer of a supervisor separate from the computer of one of the self-guided vehicles, said computer performing the calculation processing of a digital map of the surface to be processed with a definition of travel lines, each associated with an identifier, without assigning lines to a particular self-guided, said digital map comprising: • at least georeferenced border data of the area of movement • and a plurality of georeferenced indexed lines L i, characterized in that said method comprises: b) guiding steps, during travel on a line assigned to a vehicle, controlled by the computer of the vehicle in question, taking into account the digital map precalculated by the supervisor, consisting in transmitting to each of the self-guided agricultural vehicles messages allocating at least one indexed line L; - the method further comprises an initial step of storing at least one copy of said digital map in a digital memory of each of said agricultural vehicles - the movement of each of said self-guided agricultural vehicles being controlled by a local computer on the basis of the allocated indexed lines L i and said position coordinates - said allocation messages for a following indexed line L i being transmitted to a self-guided agricultural vehicles when said self-guided agricultural vehicle transmits a service message. a) an initial step of calculating the topology of the area of movement, carried out by a computer of a supervisor separate from the computer of one of the self-guided vehicles, said computer performing the calculation processing of a digital map of the surface to be processed with a definition of travel lines, each associated with an identifier, without assigning lines to a particular self-guided, said digital map comprising: • at least georeferenced border data of the area of movement • and a plurality of georeferenced indexed lines L i, characterized in that said method comprises: b) guiding steps, during travel on a line assigned to a vehicle, controlled by the computer of the vehicle in question, taking into account the digital map precalculated by the supervisor, consisting in transmitting to each of the self-guided agricultural vehicles messages allocating at least one indexed line L; - the method further comprises an initial step of storing at least one copy of said digital map in a digital memory of each of said agricultural vehicles - the movement of each of said self-guided agricultural vehicles being controlled by a local computer on the basis of the allocated indexed lines L i and said position coordinates - said allocation messages for a following indexed line L i being transmitted to a self-guided agricultural vehicles when said self-guided agricultural vehicle transmits a service message. • at least georeferenced border data of the area of movement • and a plurality of georeferenced indexed lines L i, characterized in that said method comprises: b) guiding steps, during travel on a line assigned to a vehicle, controlled by the computer of the vehicle in question, taking into account the digital map precalculated by the supervisor, consisting in transmitting to each of the self-guided agricultural vehicles messages allocating at least one indexed line L; - the method further comprises an initial step of storing at least one copy of said digital map in a digital memory of each of said agricultural vehicles - the movement of each of said self-guided agricultural vehicles being controlled by a local computer on the basis of the allocated indexed lines L i and said position coordinates - said allocation messages for a following indexed line L i being transmitted to a self-guided agricultural vehicles when said self-guided agricultural vehicle transmits a service message. - the method further comprises an initial step of storing at least one copy of said digital map in a digital memory of each of said agricultural vehicles - the movement of each of said self-guided agricultural vehicles being controlled by a local computer on the basis of the allocated indexed lines L i and said position coordinates - said allocation messages for a following indexed line L i being transmitted to a self-guided agricultural vehicles when said self-guided agricultural vehicle transmits a service message.