story was over 100 versions had recorded. Among them, the story which daughter-in-law has powerful fart and it become a cause of happenings is type folktale. The analysis of this type\'s structure shows that it can distinguish three patterns: ‘perfect’, ‘absence’, and ‘variation’. ‘Perfect’ pattern consist on the sequence of daughter-in-law\'s fart - banishment - return - (competition), ‘absence’ lact a return, and ‘variation’ omit the banishment. The type may changed through the process of ‘perfect’ - ‘absence’ - ‘variation’. In that process, the story may strengthen the character as a jest. Powerful fart of daughter-in-law is variation of huge excrements. It is a symbol of giant and we can show it in giant myth. We can find a same symbol in creation myth [Jang Gil Son] and the story of king Ji Cheol Ro‘s marriage. So, these story and type hold a giant character in common. And the character is related to production capacity. Though it is common in myth, legend and folktale, the consequence of excrements is differ each other. That is, excrements of Jang Gil Son is creation, wife of king Ji Cheol Ro\'s one is marriage and daughter-in-law\'s is entry. It caused by the difference of genre. The desire of production capacity give a powerful fart, the symbol of giant, to daughter-in-law. In the beginning, power fart was negative character but it become a positive character when it recognized as a useful one. People want a powerful production capacity but the other hand, they want control the power in their will. And this conscious reflected in the story. Of course, we can not say that folktale and myth has a relation in directly. But when we face the ploblem which difficult to explain, for example the reason why daughter-in-law gave a powerful fart, myth can show the way to explain. And this study is one of that.