The invention relates to a lauromacrogol gel for external use and a preparation method thereof. The components include urea, lauromacrogol, aloe extract, benzalkonium chloride, sodium alginate, potassium sorbate, menthol, glycerin, dodecahydrate Disodium hydrogen phosphate, sodium dihydrogen phosphate dihydrate and purified water. The feature of the present invention is to combine lauromacrogol, which has rapid antipruritic and pain relief, anti-inflammatory and detumescent effects, and aloe vera extract, which has astringent and skin repairing effects, and is used in the form of a gel film to treat 1-2 degree burns and mosquitoes Bites and bruises patients; this is beyond the reach of similar drugs for the treatment of burns and mosquito bites, and there is no similar treatment of anti-inflammatory products or related inventions.