A travel controlling apparatus of a vehicle includes a slip ratio detecting unit that obtains a slip ratio of front wheels and rear wheels depending on a travel state of the vehicle, a friction coefficient detecting unit that obtains a friction coefficient of the front wheels and the rear wheels depending on the travel state of the vehicle, a slip ratio stable region setting unit that sets a slip ratio stable region in which the friction coefficient becomes a predetermined value or more depending on the travel state of the vehicle, a braking/driving force controlling unit that controls a braking/driving force in the slip ratio stable region, and a slip ratio stable region changing unit that changes an upper limit value and a lower limit value in the slip ratio stable region depending on a variation of the friction coefficient when the slip ratio increases and when the slip ratio decreases.