A seal member includes a seal body in which a lower seal portion along a lower edge of a door and an intersection seal portion that follows an edge of the door intersecting the lower edge are formed integrally with each other, and a drainage hole that opens on an upper edge side of the lower seal portion and via which a vehicle interior side of the lower seal portion is in communication with a vehicle exterior side of the lower seal portion. The seal member is installed on an edge portion of an inner surface of the door and interposed between the door and a vehicle body when the door is closed.