A wheel steering system comprises a steering device, a signal execution device, and a steering angle control device. The steering device is disposed on a steering wheel. The steering device comprises a wheel support (2), the top of the wheel support is connected to a chassis (8) by means of a slewing bearing (1), and the bottom of the wheel support is rotatably connected to two ends of a rotary shaft of the steering wheel. The signal execution device controls the slewing bearing (1), so as to control the rotating angle of the steering wheel. The steering angle control device comprises multiple reciprocating switch rotors (9) capable of sending electronic signals of steering angles, and controls, by means of the signal execution device, the steering device to implement steering. The multiple switch rotors (9) are used as the steering angle control device, switches of the switch rotors send electronic signals, and the electronic signals are transferred to the signal execution device. The slewing bearing (1) can
