To provide a double-door type door structure which can be adopted without inconvenience, even if a space for a hinged door can be hardly secured or cannot be secured, or the hinged door is not desired to be employed, though a door storage case space can be secured on one side, and even if the door storage case space can be hardly secured or cannot be secured, or is not desired to be provided, though the space for the hinged door can be secured on the other side.

Either of right and left sides of one opening is opened and closed by a sliding door; the other side is opened/closed by the hinged door; and the opening and closing operation of one door makes the double doors interlocked with each other so as to open/close the opening. Particularly, the sliding door is equipped with an opening and closing operation section, so that the double-door type door structure can prove its worth as a barrier-free double-door type door structure.