The present invention provides a method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate industrially advantageously in a high yield. More particularly, the present invention provides a method of producing 2-isopropenyl-5-methyl-4-hexen-1-yl 3-methyl-2-butenoate represented by the following formula (IV): which comprises reacting 2-isopropenyl-5-methyl-4-hexen-1-ol with an organic sulfonyl halide in the presence of a basic substance to give a sulfonate compound represented by the following formula (III): wherein R is a hydrocarbon group, and reacting the obtained sulfonate compound with senecionic acid in the presence of a basic substance.