An information providing device for a vehicle is provided in which when the subject vehicle (VA) transmits to a base station (20) subject vehicle information including the position, speed of travel, and direction of travel of the subject vehicle (VA), moving object information including the position, speed of travel, and direction of travel of a detected vehicle (VB), and time information including the time at which the above has been obtained, the base station (20) calculates the probability of the presence of the detected vehicle (VB) on map data based on each of the above-mentioned pieces of information and transmits to the subject vehicle (VA) prediction information about the detected vehicle (VB) present in an intersection, including the subject vehicle position, based on the subject vehicle position and the probability of the presence of the detected vehicle (VB). This enables the avoidance of an intersection collision with the detected vehicle (VB) by issuing an alert or warning to an occupant of the subject vehicle (VA) based on the prediction information. During this process, since it is unnecessary for the detected vehicle (VB) to include the same equipments with the subject vehicle (VA), it is possible for the subject vehicle (VA) to avoid an intersection collision with all the detected vehicle (VB) including a vehicle which has no device such as inter-vehicle communication means and, moreover, since it is unnecessary to provide infrastructure for each intersection, realization is possible at a low cost.