The invention discloses a tire spreader and a walking control system thereof. The system comprises a detection device for acquiring a current rear wheel walking signal; a controller for receiving the current rear wheel walking signal and outputting a rear wheel control signal to a rear-driving system; a front-driving auxiliary system; and a front-driving switch for selecting whether a front wheel working signal is outputted to the controller according to working conditions. The controller receives the front wheel working signal, simultaneously, outputs a front wheel control signal to the front-driving auxiliary system. The walking control system can meet demands of different spreading operations of the spreader, enlarges the driving force of the whole vehicle, and enhances the skid resistance ability of the whole vehicle.