The invention relates to a Vehicle speed limit display device (10) which is arranged on a vehicle comprising a swithcing unit (40) for switching states to make vehicle move foreward and backward. The device comprises a display (13) for displaying limited speed, The device is based on limited speed displayed on a traffic sign in an image data detection image (60) acquired by an image acquiring device (11). The device displays the detected limited speed on the display when the working state of the switching unit is in the state of making the vehicle to move foreward. On the other hand, the device stops the displaying of the limited speed in the display when the working state of the switching unit is in the state of making the vehicle to move backward.