This study aimed to describe the structure of folklore Ikan Baung Putih and its relationship with the myth of ikan baung putih growing in Muara Kaman. Relations folklore with myths known weave patterns and functional actants in the analysis of the story. The results showed that the folklore Ikan Baung Putih has a very close relationship with the myth that developed. King Setanyer told never ask for help to the ikan Baung Putih to be saved from the attack earthworms. Ikan Baung Putih accepted the request to propose several measures, among others, King Setanyer and their offspring should not eat the flesh of ikan Baung Putih. If the agreement is violated, then there would be a calamity that comes in the form of itching and scabies on the body. The deal is then a myth that developed in Muara Kaman.