The multi-display system installed in the driver’s seat of construction equipment can monitor all types of information about the equipment, receive warning and error messages in real time and show a guidance message to quickly diagnose errors in the main parts of the equipment for a fast and accurate inspection, which ensures more efficient and safe working. The flexible expandability that supports the multi-media and the screen mirror function, which can be interlocked with a smartphone, provides the user with more varied conveniences.