An object of the present invention is to provide a technique for producing a microcapsule containing a pesticidal compound in a fatty acid ester such as methyl O-acetylricinoleate, which delays the release timing of the pesticidal compound as compared to a conventional microcapsule. Provided is a method for producing a microcapsule, which comprises:(1) keeping a mixture of a pesticidal compound, a compound represented by formula (I):wherein X represents —；CH2—；CH2—； or —；CH═；CH—；, R1 represents a C1-C4 alkyl group, and R2 represents a C1-C4 alkyl group, and a polyisocyanate at 20 to 60° C. for 3 hours or more；(2) adding the mixture to water containing a polyol or a polyamine to prepare liquid droplets in the water； and(3) forming a film of polyurethane or polyurea around the droplets.
