To provide a traveling support system for vehicle that gives information for enabling the user of the vehicle under traveling to cope with a vehicle which stops ahead on a road.

Another vehicle located within a prescribed distance ahead of an own vehicle A transmits winker information and location information to a center 23 in response to an information transmission request from the center 23. When detecting that a vehicle B which is scheduled to change a route is located on the same lane as the vehicle A ahead of the traveling path on the basis of the winker information and location information of the vehicle located ahead of the vehicle A transmitted from the center 23 and the own vehicle location information and the path information, the vehicle A notifies the user of presence of the vehicle B, and promotes the user to pay attention by using a speaker 11.