This paper attempts to study the process producing sexual indentity of Korean old sexual humor settled down in an anthology, Gogeumsochong[古今笑叢] in the Chosun(朝鮮) Dynasty. When we respect sexual humors as a serious subject of academic research, it is important that we should consider what is fun or ‘humorous’ can be different according to social and cultural backgrounds, or relative to people who enjoy it. Accordingly, the study of sexual stories’ can elucidate a socio-cultural mechanism producing meanings, and the function of consciousness of people recognizing the implicit or explicit funny point whose those stories include. The sexual humors had a construct focusing men’s joy. Men who allured partners played a positive role in the stories and was represented a subject to look at and to laugh at women. In contrast to men, women who are tempted by man, played a passive role in the stories and was represented an object ‘to -be-looked at’ and ‘to-be-laughed at’. Despite of it, many of the sexual stories was read by women who was able to read Chinese Character. Because Chosun Dynasty discriminated between man and woman on the sexual morality, it is assumpted that men and women who read sexual humors developed different identity. It is possible that men constituted their identity between two relative ends, one of them was ethic strictness and the other sexual sensitivity, but women constituted it by emotional clash between sexual obedience and routine resistance. Besides the sexual morality, the punishment for violation criminal conversation was applied with distinction of sex. Men of Chosun was unresticted in comparison with women when they had extramarital affairs. Many of the sexual humors represented the affairs or rapes. If men thought the sexual stories was real or the event of the stories was feasible, women was likely to oppose the idea. For the women of Chosun who put a taboo the sexual crimes, the event of the stories was imaginary. With a this reason, it is possible that men developed unpleasant or pleasant feeling according to their sexual morality, women developed comfortable feeling irrespective of their sexual morality.