The subfamily Pimplinae currently includes 1,686 worldwide species in 45 genera. 36 species in 16 genera have been recorded from South Korea. Among them, the genus Delomerista is a small sized group in the subfamily Pimplinae with 18 described species from palaearctic, nearctic, oriental regions. The South Korean Delomerista wes newly recorded for the first time from South Korea in this study. The genus Perithous is a small group in this subfamily with 17 species from palaearctic, nearctic, oriental regions. The taxonomic study of the South Korean Perithous was initiated by Kim (1955) reported one species, Perithous scurra (Panzer, 1804). The genus Xanthopimpla is a moderate size in the subfamily Pimplinae with 261 species from entire regions, except nearctic and ethiopia regions. The existing South Korean Xanthopimpla includes only one species, Xanthopimpla punctata (Fabricius, 1781). In this study, we report six unrecorded species, Delomerista mandibularis (Gravenhorst, 1829), Delomerista pfankuchi Brauns, 1905, Perithous albicinctus (Gravenhorst, 1829), Perithous townesorum (Gupta, 1982), Perithous speculator Haupt, 1954 and Xanthopimpla clavata Krieger, 1914 of subfamily Pimplinae from South Korea.