The invention relates to a pine moth sex 
pheromone microcapsule and a preparation method thereof, belonging to the field of embedding technology for the pine moth sex 
pheromone microcapsule. The microcapsule comprises a microcapsule 
wall material and a microcapsule core material, wherein the microcapsule 
wall material is a 
prepolymer liquid formed by reaction among 
methyl methacrylate, 
methacrylic acid and an initiator, the microcapsule core material comprises pine moth sex 
pheromone and 
liquid paraffin, and pine moth sex pheromone is cis-5,trans-7-dodecadienal, cis-5,trans-7-codlemone, cis-5,trans-7-dodecadienyl acetate and / or cis-5-dodecadienyl acetate. The microcapsule provided by the invention has the advantages of sensitivity, specificity, high efficiency, a 
long lasting period, degradability, good 
biocompatibility, no 
pollution to the environment, low price, etc., can be used for 
population monitoring and large-scale 
trapping and killing and control of pine moth, is capable of accurately predicating next-generation 
population occurrence density and has good 
economic benefits and ecological benefits.