The Semi-gods and the Semi-devils is one of Jin Yong¡¦s most popular Martial-arts novels. Strange adventures of the main characters: Hsiao feng, Tuan yu, Hsu-chu are analogous to those of mythic heroes. This paper uses the archetypal approach to illustrate the main characters, the heroes¡¦journeys, for archetypes are universal patterns from which myths derive. My intention is that the theory of archetypes would enable us to see the literary work differently and give fresh insights to the novel in which important elements and meanings might otherwise go unnoticed.