Provided is a door structure including: a door installed capable of opening and closing a door opening part of a vehicle body; a decorative member attached to a surface of the door which faces an outside of a vehicle; and a sealing member arranged along an end part of the door which faces an outside of the door, and sealing the door opening part, wherein the sealing member includes a thick part which becomes thicker toward an inside of the door, and which is inserted into a gap formed between the end part of the door which faces the outside of the door and an end part of the decorative member which faces the outside of the door, and the sealing member is biased toward an inside of the vehicle.