In order to provide a controlled-release insect-controlling resin molded product and a insect-controlling resin composition for making such a controlled-release insect-controlling resin molded product that have immediate effectiveness, residual effectiveness, and preservation stability and that are excellent in merchantability and manufacturing control, the present invention uses an insect-controlling resin composition including a polyvinyl chloride resin containing a non-vaporizable insect-controlling component and erucic acid.