PURPOSE: To permit safe and easy steering operation by installing an angle indicating means which transmits sterring information to a steering wheel, in an apparatus for steering front and rear wheels, maintaining a fixed functional relation between the steering angles for front and rear wheels, by the operation of the steering wheel.

CONSTITUTION: When front wheels 5 are steered by the operation of a steering wheel 1, a rear-wheel steering servoactuator 17 is driven by the control signal from a computer 20 which receives each output of a front-wheel steering angle detecting means 21 installed on a steering shaft 2 and a lateral acceleration sensor 22, and rear wheels 15 are steered through a gear box 14, and a tie-rod 14 etc. In this case, the computer 20 operates to steer rear wheels 15 in the functional relation shown by a sine curve shown in the figure, with the steering angle θ of front wheels 5. Each position of the front-wheel steering angle θ1 with which a rear-wheel steering angle α becomes the max. and the front-wheel steering angle θ2 with which the rear-wheels 15 are not steered and only the front wheels 5 are steered is shown on the periphery of the steering wheel 1, or a spoke is arranged at said position.