A hood apparatus for a vehicle has a hood member which closes an opening of an engine room, a lifting mechanism, and a driving portion. The lifting mechanism has a link mechanism and a gas spring. The link mechanism is structured so as to be able to raise up and bring down the hood member by including a first link member and a second link member shorter than the first link member which bridge the hood member and a top end portion of a strut house panel of the engine room. The gas spring urges the hood member upward. The driving portion uncouples the second link member from the hood member when an impact force greater than or equal to a predetermined value is inputted from an front end portion of a automobile.