This invention relates to an anti-insect material, an anti-insect steel sheet having anti-insect material and a method of manufacturing an anti-insect steel sheet. The anti-insect material comprises resin and pyrethrin. The anti-insect steel sheet comprises a steel plate and an anti-insect material. The steel plate comprises a first side. The anti-insect material is disposed on the first side to form an anti-insect film layer. The anti-insect material comprises resin and pyrethrin. Accordingly, the anti-insect material and the anti-insect steel sheet of the invention has excellent anti-bug property, capable of eliminating infection of bacteria and vectors spread from insects such as cockroaches to provide great benefits for family and public sanitation and to have extremely better mechanical features (small color difference, non-corrosion, non-peeling-off, and non-foaming).本發明係關於一種防蟲材料、具有防蟲材料之防蟲鋼片及防蟲鋼片之製造方法,該防蟲材料包括樹脂及除蟲菊精。該防蟲鋼片包括一鋼板及一防蟲材料。該鋼板具有一第一側面。該防蟲材料設置於該第一側面以形成一防蟲膜層,該防蟲材料包含樹脂及除蟲菊精。藉此,本發明防蟲材料及防蟲鋼片具有優良之防蟲性(Anti-bug),可杜絕蟲類蟑螂等所傳播的細菌、病媒等感染,對家庭及公共衛生有很大助益,並且具有極佳之機械特性(色差小、無銹蝕、無剝離、不起泡)。