Abstract: The user interface of tractor cab real-time information management system is designed in this paper. First of all， based on the idea of “user friendly”， the information management system was decorated in the reasonable space position according to the spatial layout of tractor cab. Then， design principles was made by analyzing the drivers operation habits and ways of thinking， and the user interface of the system was designed via LabView， including basic information interface， job information interface， camera monitoring interface and fault diagnosis interface. Finally， the user interface was evaluated. It was shown that the color coordination was suitable and comfortable， the control layout was logical， and the operation mode was consistent with the Windows system. The user interface layout could meet the drivers cognitive psychology need， and was easy to master. The vivid graphical interface could provide some pleasure to driver.

Key words: tractor, information management system, user interface, LabView