An adhesive-type insect trap includes a body having a hole for insertion of an adhesive sheet; a light source mounting unit disposed on the body; and a cover which is detachably mounted on the body and has a through-hole in at least a part thereof, and an adhesive sheet including a sticky substance and a sheet. The body includes a guide unit by which the adhesive sheet is guided, and the cover comprises a light refraction unit therein or on a surface thereof.