An information display apparatus for vehicles for securely providing the driver with only information corresponding to the running condition, the information display apparatus comprising an information processor for receiving information detected by various sensors and monitors and for detecting the running condition of the vehicle, memory containing information on respective running conditions for display and degree of information importance being, and a display unit for displaying information in a display area or in an amount according to the degree of importance. The memory of the information display apparatus is used to read information corresponding to the detected running condition and the degree of information importance. The display area of speed information is increased when the vehicle is running straight and the display area of information about conditions behind the vehicle is increased when the vehicle is traveling in reverse.