An exterior component for a vehicle comprising: a first member (11, 11B) that has a design surface disposed on a vehicle surface; and a second member that forms a housing space which is sealed between the first member (11, 11B) and the second member in a liquid tight manner by being joined to the first member (11, 11B) on a rear side of the design surface, wherein a joint portion between the first member (11, 11B) and the second member is configured of an annular recessed portion that is provided on the second member side, an annular protrusion portion that is provided on the first member (11, 11B) side, and elastic adhesive with which an inside of the annular recessed portion is filled thereby fixing the annular protrusion portion inserted into the inside of the annular recessed portion over the entire peripheries of the annular protrusion portion and the annular recessed portion, characterized in that the first member (11, 11B) includes a peripheral wall portion surrounding an outside of the joint portion on the rear side of the design surface, and the annular recessed portion and the annular protrusion portion form a labyrinth structure in which the annular protrusion portion and the peripheral wall portion on the first member (11, 11B) side, and a side wall portion of the housing space forming an opening end of the housing space and an outer wall portion of the housing space extending along the side wall portion configuring the annular recessed portion on the second member side are entangled with each other. a first member (11, 11B) that has a design surface disposed on a vehicle surface; and a second member that forms a housing space which is sealed between the first member (11, 11B) and the second member in a liquid tight manner by being joined to the first member (11, 11B) on a rear side of the design surface, wherein a joint portion between the first member (11, 11B) and the second member is configured of an annular recessed portion that is provided on the second member side, an annular protrusion portion that is provided on the first member (11, 11B) side, and elastic adhesive with which an inside of the annular recessed portion is filled thereby fixing the annular protrusion portion inserted into the inside of the annular recessed portion over the entire peripheries of the annular protrusion portion and the annular recessed portion, an annular recessed portion that is provided on the second member side, an annular protrusion portion that is provided on the first member (11, 11B) side, and elastic adhesive with which an inside of the annular recessed portion is filled thereby fixing the annular protrusion portion inserted into the inside of the annular recessed portion over the entire peripheries of the annular protrusion portion and the annular recessed portion, characterized in that the first member (11, 11B) includes a peripheral wall portion surrounding an outside of the joint portion on the rear side of the design surface, and the annular recessed portion and the annular protrusion portion form a labyrinth structure in which the annular protrusion portion and the peripheral wall portion on the first member (11, 11B) side, and a side wall portion of the housing space forming an opening end of the housing space and an outer wall portion of the housing space extending along the side wall portion configuring the annular recessed portion on the second member side are entangled with each other.