A survey was carried out to investigate Gamasina mite composition in the Gyeongbuk and Gangwon, during 2009-2014. Samples were collected from wide range of habitats (i.e. forest, riparian grassland, agriculture). 3 species namely Antennoseius avius (Ascidae), Hypoaspis sardous (Laelapidae) and Stylochirus caucasicus (Ologamasidae) are records as new records compared to already existed database of mite in Korea. Description of three new records species, identification keys (female adult) each species and figures of external morphology are given.