Door weather strip

A door weather strip comprises: an upper extrusion molded part 7 installed on a door sash 3 on a roof side; a molded part 9 without a slit thereon, connected to the upper extrusion molded part on a door corner part 130; and a lower extrusion molded part 8 installed on a vertical part of the door sash and detachably inserted into the molded part; the upper and lower extrusion molded parts and the molded part having a base bottom part 11 and a hollow seal member 12 formed thereon, in which: a seal bead 30 is formed on the molded part, the seal bead extending from an inner-cabin side toward an outer-cabin side relative to the base bottom part of the molded part on the roof side and descending along an outer-cabin side of a part of the molded part on the vertical part side of the door sash.