PURPOSE: A method for manufacturing an insect repellent is provided to enhance repellent effect without harm to human body using Tripterygium wilfordii Hook. f. ginkgo, wild camomile, Tagetes patula, peppermint, cinnamon, Chungyang red pepper, garlic, Zanthoxylum piperitum DC, and ginger. CONSTITUTION: A method for manufacturing an insect repellent comprises: a step of boiling 6 parts by weight of Tripterygium wilfordii Hook. f., 1 part by weight of Chamaecyparis obtuse, and 1 part by weight of ginger in 1,000 parts by weight of purified water for one and half hours to 4 hours and maturing for 1 week to 1 month； a step of filtering the liquid to obtain a Tripterygium wilfordii Hook. f. extract； a step of boiling 5 parts by weight of ginkgo fruits, 5 parts by weight of ginkgo leaves, stems, roots, and barks, 1 part by weight of Chamaecyparis obtuse, and 1 part by weight of ginger in 1000 parts by weight of purified water for one and half hours to 4 hours, and maturing for 1 week to 1 month to prepare a ginkgo extract； a step of boiling 5 parts by weight of Tagetes patula and 5 parts by weight of wild chamomile in 100 parts by weight of purified water for one and half hours to 4 hours and maturing for 1 week to 1 month to prepare a Tagetes patula extract； a step of boiling 5 parts by weight of cinnamon in 300 parts by weight of ethyl alcohol for one and half hours to 4 hours and maturing for 1 week and 1 month to prepare a cinnamon extract； and a step of boiling 3 parts by weight of Chungyang red pepper, 3 parts by weight of Zanthoxylum piperitum DC, 3 parts by weight of garlic, 1 part by weight of Nepeta cataria L., and 3 parts by weight of Platycodon grandiflorum in 100 parts by weight of purified water for one and half hours and maturing for 1 week and 1 month.본 발명은 해충퇴치제 제조방법에 관한 것으로, 뇌공등, 은행나무, 만수국, 계피 등 천연재료의 추출물을 이용하여 제조한 해충퇴치제 제조방법에 관한 것이다. 본 발명은 뇌공등 추출물을 제조하는 단계； 은행나무 추출물을 제조하는 단계； 만수국 추출물을 제조하는 단계； 계피 추출물을 제조하는 단계； 혼합추출물을 제조하는 단계； 및 상기 뇌공등 추출물 40중량부에 대하여 은행나
