History of discussion of realism in Korea can be limited the field of the types of realism. Our modern literature had developed under the proposition of colonization and modernization, so our writers and theorists expected the power of the realism. Serious discussion of realism began in the attempt to separate the realism from the naturalism. Pal-Bong Kim presents ``dialectic realism``(1929), Mag An presents ``proletariat realism`` (1930). Sul-Ya Han identified ``dialectic realism`` with ``proletariat realism``(1931). Hwan Kwon and Mag An appeared as the positive supporter of the socialist realism. Theorists such as Young-Hee Park, Nam-Chon Kim, Ham-Kwang An, Doo-Yong Kim denied the insistence that the socialist realism can be applied all over the world. Young-Hee Park, Chul Paik and Kon-Kang Yun presented the psychological realism as an alternative of socialist realism(1934). And Hyo Han insisted that socialist realism should contain the revolutionary romanticism. Afterwards he repeats the insistence. After the 1945 Liberation, Nam-Chon Kim raised the ``evolutionary realism``, Hyo-Min Hong raised ``Korean realism`` and ``national realism``, Sik han ``noble realism``. In the 1950`s the discussion of the realism went back to the objective or naive realism.