PROBLEM TO BE SOLVED: To suppress intrusion of an insect into a building when a door opens by preventing an insect from coming close to a space between a door and a door frame while suppressing cost increase.SOLUTION: A door structure 10 comprises a door frame 12 installed in an opening 22 of a building 18, a door 14 attached to the door frame 12 to be freely opened and closed, an airtight material 16 included between the door 14 and the door frame 12 in a state that the door 14 is closed so as to increase airtightness, and a repelling part 28 integrally formed with the airtight material 16, containing a repellent, and exposed to a space S between the door 14 and the door frame 12 in a state that the door 14 is closed.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】コスト増を抑制しつつ、ドアとドア枠の間の隙間に虫が寄り付かないようにして、ドアを開いたときにおける建物内への虫の侵入を抑制する。【解決手段】ドア構造10は、建物18の開口部22に設けられるドア枠12と、ドア枠12に開閉可能に取り付けられるドア14と、ドア14を閉じた状態でドア14とドア枠12との間に介在し、気密性を高める気密材16と、気密材16と一体的に構成され、虫の忌避剤を含有し、ドア14を閉じた状態におけるドア14とドア枠12との間の隙間Sに露出する忌避部28と、を有する。【選択図】図4