This studies in particular sex pheromone for Spodoptera litura the synthesis of research, from diol compounds were synthesized by a series of insect sex pheromone, and by the Taguchi test upgrade (Z, E) -9,11-tetradecadienyl acetate productivity and cost down. In addition to high selectivity and synthetic way (Z, E) -9,12-tetradecadienylacetate synthesis.