PROBLEM TO BE SOLVED: To provide a method for rearing natural enemy insects that can efficiently rear natural enemy insects of spider mites in large quantities.SOLUTION: A rearing method includes a breeding process for breeding spider mites, a parasitic process for allowing bred spider mites to be parasitic on potted vegetables which are at least one kind of vegetables selected from Brassicaceae, Compositae and Chenopodiaceae vegetables, and a rearing process for putting the vegetables in a rearing container and rearing natural enemy insects of spider mites in the rearing container.COPYRIGHT: (C)2014,JPO&INPIT【課題】ハダニ類の天敵昆虫を効率的かつ大量に飼育することができる天敵昆虫の飼育方法等を提供すること。【解決手段】本発明に係る飼育方法は、ハダニ類を増殖させる増殖工程と、アブラナ科、キク科及びアカザ科の野菜からなる群より選択される少なくとも1種の野菜であってポット植えされた野菜に、増殖させたハダニ類を寄生させる寄生工程と、当該野菜を飼育容器に入れて、当該飼育容器内でハダニ類の天敵昆虫を飼育する飼育工程とを含む。【選択図】図2