The invention discloses a 
plant active easy-to-decompose environmentally-friendly mosquito-repellent 
enzyme and a preparation method thereof, and the 
plant active easy-to-decompose environmentally-friendly mosquito-repellent 
enzyme comprises two parts, one part comprises daphne odera 
essential oil, 
allicin, chamomile 
essential oil, methyl chavicol, 
limonene, 
caryophyllene, volatile oil of 
artemisia argyi leaves, flavonoids of 
artemisia argyi leaves, amino acids, vitamins and other invalid organic compounds which are obtained by obtaining from Common jasmin orange leaves, washed waste citrus peel, fresh garlic flakes, 
Agastache rugosus leaves, clove leaves and 
artemisia argyi leaves by use of the vital action of a Thermomonospora curvata microbial inoculum, a corn 
smut microbial inoculum and an aerobic sliding 
slime mold microbial inoculum, extracting with water, 
ethanol and 
ethyl acetate, and applying with a strong 
magnetic field. The other part is mixed 
nutrient powder composed of bean cake 
powder and 
corn starch, and wood candida mycoderma 
bacteria is also cultivated in the 
nutrient powder. The 
plant active easy-to-decompose environmentally-friendly mosquito-repellent 
enzyme haswide sources, low cost, detailed and easy manufacturing process, quick effect, long-lasting effect, 
environmental protection, no 
pollution and easy 
decomposition.