The invention discloses a filter core for repelling mosquitoes, which comprises porous material particles, wherein
drug having a mosquito-repellant
flavor is carried in the porous material particles. The preparation method of the filter core for repelling the mosquitoes comprises the following steps of: placing the porous material particles into the
drug with the mosquito-repellent
flavor, heating the porous material particles carrying the
drug in water bath, cooling the porous material particles after being adequately thermally immersed, and then filtering the porous material particles to acquire the filter core for repelling the mosquitoes. The prepared filter core is placed into a
shower head for showering, so that when water flows by the filter core when people take a
shower, the drug can be dissolved and slowly released along with the
water flow to be sprayed on the body of people, the drug has a smell disgusting and repelling the mosquitoes but acceptable by the
human body, after the drug is sprayed on the
human body, an effect for refreshing the body and repelling the mosquitoes can be achieved, a bacteriostasis effect also can be realized, and after the showering, the smell can be reserved on the
body surface for several hours. Due to the adoption of the filter core and the
shower head for repelling the mosquitoes and the preparation method of the filter core, mosquitoes can be repelled through showering every day, and the method is simple and effective.