It is provided a support structure for a cooling unit for a vehicle, in which in one straight side edge portion of a rectangular cooling unit, a first
support point and a second
support point, which are set to be away from each other in a longitudinal direction of the one side edge portion, are supported by a first retention portion and a second retention portion, respectively, the first retention portion and the second retention portion being provided in a
single support bracket fixed integrally to a vehicle body, the second retention portion supporting the second
support point through a fragile portion that is broken to permit the second support point to be separated from the second retention portion when an external force equal to or larger than a predetermined value is applied to the second support point in a direction toward a rear side of a vehicle; and when the fragile portion is broken, the second support point being permitted to move toward the rear side of the vehicle, and to pivot in a direction of an arc with a center at the first support point.