The invention discloses a 
citrus fruit fly attractant and a preparation method thereof, and belongs to the field of preventing 
plant diseases and 
insect pests. The attractant comprises the following components in parts by weight: 150-400 parts of 
eugenol methyl 
ether, 3-5 parts of 
ethyl butyrate, 10-12 parts of 
geraniol, and 6-10 parts of 
linalool, and further comprises 2-8 parts of 2,6-
butylated hydroxytoluene. The preparation technology comprises the following steps: weighing and taking the 
eugenol methyl 
ether, the 
ethyl butyrate, the 
geraniol and the 
linalool in parts by weight, pouring the 
eugenol methyl 
ether, the 
ethyl butyrate, the 
geraniol and the 
linalool which are weighed and taken into a 
beaker, adding water into the 
beaker, and fully stirring the mixture of the eugenol methyl ether, the ethyl 
butyrate, the geraniol, the linalool and the water so as to obtain a fragrance source agent of which the concentration is 10<-3>g / mL-10<-1>g / mL; weighing and taking the 2,6-
butylated hydroxytoluene in parts by weight, pouring the weighed and taken 2,6-
butylated hydroxytoluene into the 
beaker, adding the water into the beaker, and fully stirring the mixture of the 2,6-butylated hydroxytoluene and the water so as to obtain an 
oxidizing agent solution of which the concentration is 10<-3>g / mL-10<-1>g / mL; respectively putting the obtained fragrance source agent and the obtained 
oxidizing agent solution into a 
freezing chamber to perform the preservation, wherein the refrigerating temperature is 4-8 DEG C; during use, uniformly mixing the fragrance source agent and the 
oxidizing agent solution according to the compounding ratio of 10:1 so as to obtain the 
citrus fruit fly attractant of which the concentration is 10<-3>g / mL-10<-1>g / mL. According to the method, not only the production is simple, but also the cost is low, and products have the characteristic that the attractive effect is strong.