Five species of Korean Chrysochraontini are recognized through the taxonomic investigation. Among them Chrysochraon dispar major Uvarov, 1925 is newly recorded from North Korea, and Euthystira pavlovskii Bey-Bienko, 1954 is synonymized under Mongolotettix japonicus (Bolivar, 1898). A key is provided, and morphological variations of M. japonicus are discussed.