A vehicle front portion structure that includes: a radiator grille; a radar disposed at the radiator grille and a cover. The radar includes: an emission surface from which electromagnetic waves are emitted to the front of the vehicle, and an incidence surface at which reflected waves of the electromagnetic waves emitted to the front of the vehicle from the emission surface are incident. The cover is provided at the radiator grille to be openable and closable and the cover covers the emission surface and the incidence surface.