Examining the polychactous annelids collected from Tongyeong Bay and Gwangyang Bay, I found three species which should be added in tile list as new to the polychaetous annelid fauna of Korea. In the present study three species are reported with morphological descriptions. Consquently, a total of 128 species of polychaetous annelids has been reported (Kamita and Sato, 1941; Paik, 1972, 1973a, 1973b; Rho and Song, 1974, 1975: Paik, 1975a, 1975b, 1976: Lee, 1976; Paik 1977, 1978, 1979a,1979b) in Korea.