To provide a steering angle controlling device for a vehicle that can control a behavior of the vehicle stably at a high speed operation in a steering angle controlling device for a vehicle having a means for applying assist steering angle for front wheels, a means for applying assist steering angle for rear wheels, and a brake device.

In this steering angle controlling device for a vehicle having a means for applying assist steering angle for front wheels, a means for applying assist steering angle for rear wheels and a brake device, there are provided an assist rudder angle correction component for reducing calculated assist rudder angle for the front and rear wheels more for a higher vehicle speed, and a deviation compensating brake fluid calculation component for calculating brake fluid for compensating a deviation between the calculated front and rear wheel assist steering angle and the corrected assist steering angle on the rudder angle controlling means.