To provide a vehicular lamp fitting that can surely prevent infiltration of water into a lamp chamber from a connection part between a housing and an outer lens without causing deterioration of appearance.

In the vehicular lamp fitting detachably assembling the outer lens 3 to the housing 2 by fitting a projected part 3b formed on an outer peripheral edge of the outer lens 3 into a recessed groove 2a formed on a peripheral edge of an opening of the housing 2 via a gasket 6, a hole 8 opened on each recessed groove 2a is formed at an outer peripheral edge of an opening forming the recessed groove 2a of the housing 2, and a plurality of holes 8 are formed in a peripheral direction of the outer peripheral edge of the opening of the housing 2.