In Taiwan’s society, the stories of deserting the old can be divided into two types based on the behavior of those non-filial children: (1) local group custom to kill the old and eat their flesh; (2) personal non-filial behavior to desert the old. The first type of story mainly explains the origin of funeral costume and system. By making a contrast between killing the old and mourning the dead in the story, a transformation of ethics from killing the old, deserting the old, to being filial and respectful to the old is presented. The second type of story can be further divided into a practical behavior of “deserting and not taking care of the old” and a mental abuse of “taking care of the old without filial piety”. Either one, in the end, the non-filial sons and daughters in the story will definitely be punished or suffer some loss. Sometimes, it can be a lesson more materialized such as they eventually worked for nothing and did not get inheritance; sometimes, it is more of a horror in mind fearing that their children may imitate their behavior of deserting the old as an act of return. Therefore, the stories of deserting the old in Taiwan not only reflect the original custom of such action, but also carry the responsibility of teaching people ethics and educating them to be filial.