An agricultural work machine and a method for operating an agricultural work machine are disclosed. The agricultural work machine includes a driver assistance system, which comprises a memory for storing data, a computing device for processing the data stored in the memory, and a graphical interface. The computing device graphically displays an operating data field via the graphical interface, which represents a display range for a first operating parameter, and the current value for the first operating parameter in the operating data field. The computing device evaluates the first operating parameter over a portion of the display range according to an evaluation criterion that relates to a second operating parameter, evaluates the first operating parameter based on a relationship between the first operating parameter and the second operating parameter contained in a characteristic diagram system, and graphically displays the evaluation data determined in this manner in the operating data field.
