Longhorn beetles (Coleoptera: Cucujiformia: Chrysomeloidea: Cerambycidae) are the most well known coleopteran family by their species-diversity, ecological importance and morphological attraction. Because of their popularity, the immature stages of longhorn beetle are relatively well-studied. However, hardly any study on immature stage of longhorn beetle has been done in Korea until now. Here we provide first intensive research on immature stage of Korean longhorn beetle. Especially, two basic methods used in immature stage research; classical larva-adult matching by rearing and molecular identification by using DNA barcoding will be presented. This study will provide a robust foundation for further study of immature stage identification, DNA barcoding and phylogeny of cerambycidae.