The invention discloses a preparation method of a microcapsule mosquito-repellent incense liquid on the basis of
wormwood oil. The method comprises the following steps that 1, 5 g of
cypermethrin is extracted with ethyl
alcohol for use; 2, an Arabic gum
aqueous solution, an extracting solution of
juglans regia L. and a
cypermethrin extraction solution are mixed and stirred, and a
mixed solution A is obtained; 3, under the vacuum condition, a negatively charged
gelatin aqueous solution with the
mass concentration
ranging from 5% to 7% and the
wormwood oil are dropwise added into the
mixed solution A simultaneously, stirring and mixing are conducted, and an emulsified solution A is obtained; 4, 100 ml-150 ml of deionized water is added into the emulsified solution A obtained in the third step, and a diluted solution A is obtained; 5, the pH value of the diluted solution A obtained in the fourth step is adjusted to range from 3.5 to 5.5, and microcapsules A are precipitated; 6, the pH value of the microcapsules A is adjusted to range from 6.2 to 7, a curing agent is added, and cured microcapsules B are obtained; 7, reactants are continuously added to the microcapsules B obtained in the sixth step, and the microcapsule mosquito-repellent incense liquid is obtained. The microcapsule mosquito-repellent incense liquid is lasting in action and good in
antibacterial effect.