A drainage structure of a die molded part 102 on an upper side of a weather strip 10 includes an installation base member 11 installed on a front pillar 4 of a retractable roof vehicle, a hollow seal part 12 in elastic contact with a door glass 5, and a seal lip 13 in elastic contact with an inner-cabin side surface of the door glass 5 and thereby forming an eaves-trough-shaped water receiving part 14. A lower side wall surface 12b of the hollow seal part 12 has a fin 40 formed on an outer-cabin side edge 110 thereof and a bead part 30 formed from the outer-cabin side edge 110 of the lower side wall surface 12b to a position beyond an elastic contact position on the bead part with the door glass 5 toward an inner-cabin side and the bead part 30 is inclined downward.