This paper discusses a story which have been spread in seven Taiwan aborigines. The story is about God helps a certain tribal people to cultivate, after that he was finally expelled. Although the developments in these stories are the same in each ethnic groups, there are still different episodes By comparing and analyzing, we found some differences in these stories, and they can be generalized to four systems. Then we discuss when the episodes produced and the basis for imagination, by studying the agricultural equipment and farming techniques in Taiwan