A display control device comprises a rotation controller, and a drive circuit. The rotation controller is configured to control the drive circuit to output a first drive signal to drive the display screen to convert to landscape when receiving the first rotation signal, and control the drive circuit to output a second drive signal to drive the display screen to convert to portrait when receiving the second rotation signal. The rotation controller is further configured to control the drive circuit according to the vehicle status signal to drive the display screen to a corresponding position, and control the drive circuit to suspend working when the vehicle is in a driving state. The rotation controller can control the drive circuit according to different vehicle status signals, so as to drive the display screen to rotate to the appropriate position following the vehicle status, thus improving the driver's comfort and safety.