The invention discloses a jujube fruit fly adult attractant and its application. The attractant comprises myristic acid, ethyl myristate, ethyl laurate, ethyl palmitate, a mixture, ethyl linoleate and ethyl oleate One or more of the esters; in application, different attractant formulas are provided for male and female adults of Bactrocera jujuba, and the volatile matter of jujube fruit is used as the attractant and used in conjunction with the yellow sticky insect board, which has good attracting effect and special With the characteristics of strong sex and no adverse effect on the environment, the attracting activity of the 6 substances of the formula to Bacteralis japonicus was tested with a four-arm olfactometer, and the results showed that: The selective rate of acid was relatively strong, both above 30%; the selectivity of males to ethyl linoleate and ethyl oleate was relatively strong, both above 25%. Through continuous 8-day monitoring in the field, the attracting effect of volatile myristic acid was strong, the maximum trapping amount reached 23 head / animal, and the average trapping amount was 18.2 head / animal.