The invention relates to a composition of an insect pheromone attractant for Spodoptera frugiperda, which belongs to the field of plant protection, and is characterized in that the composition comprises the following components: 0.5-5% of Spodoptera frugiperda pheromone, 85-98% of a slow-release solvent, 0.1-0.5% of a synergist and 0.5-10% of a protective agent, wherein the components of the Spodoptera frugiperda pheromone comprise: (Z)-11-hexadecene acetate, (Z)-7-dodecene acetate, (E)-7-dodecene acetate, (Z)-9-tetradecene acetate, (Z)-9-dodecene acetate, (Z)-11-tetradecene acetate, (E)-7-dodecene acetate, (Z)-9-tetradecene acetate, (Z)-9-dodecene acetate and (Z)-11-tetradecene acetate. The attractant composition disclosed by the invention has the characteristics of strong specificity totarget pests, namely the Spodoptera frugiperda, good trapping effect, stable attractant and long lasting period, the lasting period can reach 90 days or more, the miscellaneous insect rate is less than 1%, and the requirements of accurate and stable monitoring of the target pests in the field can be met.