Abstract: A vehicle sun shelter for a vehicle includes an exterior shelter for shading an exterior of the vehicle to block heat radiation of sunlight entering into the vehicle and a quick releasable fastener for releasably fastening a vehicle body of the vehicle in order to retain the exterior shelter in position. The exterior shelter includes a front shelter adapted for shading a front windshield of the vehicle, a rear shelter adapted for shading a rear windshield of the vehicle, and a flexible shade which includes two side shading sheets extended between the front and rear shelters for shading side windows of the vehicle respectively. Therefore, the window frame of the vehicle is completely shield by the exterior shelter to effectively prevent the heat entering into the vehicle.