The invention provides a cooling device for a vehicle capable of improving the cooling performance of an air intake device disposed in an engine room without being influenced by the shape of the upperend of the front grille. The front grille (12) has a front lower inclined portion (12A) on its upper end surface face. An air guide plate (40) having a rear lower inclined portion (43) is provided above a radiator (31) and below an engine cover (15). The rear lower inclined portion is inclined so that its extended surface faces in the direction of a throttle body (26), an air inlet pipe (27), andan intake manifold (28) which are arranged on a lower portion of the intake pipe. The air guide plate (40) is mounted above the radiator on an inner side of the engine cover. The engine cover has aninner panel (16) on its inner side, and the air guide plate has a front edge portion (41) that extends downwards from the front edge and is fixed to a front portion of the inner panel; and a leg portion (44) which extends upward from an upper surface of the rear lower inclined portion (43) and is fixed to the inner panel.