PROBLEM TO BE SOLVED: To provide a pest repellent, a pest repellent composition, which is excellent in repellent effect against pests, particularly flying pests, is safe and has little odor, and a pest repellent method. SOLUTION: [1] Silicone oil, ester oil, ether oil, hydrocarbon oil, carbon having a surface tension of 40 mN/m or less at 25° C. and a viscosity of 23 m° C. or less measured by a B-type rotational viscometer of 1200 mPa·s or less. A pest repellent containing, as an active ingredient, one or more liquid oily components selected from the group consisting of aliphatic higher alcohols having a number of 14 or more and polyhydric alcohols, [2] containing the liquid oily components, and other than The pest repellent composition containing no pest repellent in an effective amount, and [3] the human pest repellent or the pest repellent composition such that the amount of the liquid oily component is 0.1 mg or more per 1 cm 2. It is a pest repellent method that is applied to the surface. [Selection diagram] None【課題】害虫、特に飛翔害虫に対する忌避効果に優れ、安全でかつ臭気の少ない害虫忌避剤、害虫忌避組成物、及び害虫の忌避方法を提供する。【解決手段】[1]25℃における表面張力が40mN/m以下、B形回転粘度計による23℃における粘度が1200mPa・s以下である、シリコーン油、エステル油、エーテル油、炭化水素油、炭素数14以上の脂肪族高級アルコール、及び多価アルコールからなる群から選ばれる1種以上の液状油性成分を有効成分とする、害虫忌避剤、[2]前記液状油性成分を含有し、それ以外の害虫忌避剤を有効量含まない、害虫忌避組成物、及び[3]前記害虫忌避剤又は害虫忌避組成物を、前記液状油性成分の量が1cm2あたり0.1mg以上となるように人の皮膚表面に塗布する、害虫の忌避方法である。【選択図】なし