PROBLEM TO BE SOLVED: To provide an insect proof packing which can keep effect of an insect repellent for a long time.SOLUTION: In an insect proof packing 10, a rubber repellent containing part 12 containing an insect repellent is fixed at an installation concave part 3a of a frame body 3. When a door 2 is closed, the repellent containing part 12 is pressed by a projection part 2a of the door 2 and deforms. In release amount control means 20, the repellent containing part 12 is deformed and the release amount of the insect repellent is increased when the door 2 is closed. By increasing the release amount of the insect repellent only when the door 2 is closed, the release amount of the insect repellent is suppressed in small amount when the door 2 is open. In this way, the effect of the insect repellent is kept for a long time.