Mnong people have many rituals. In my opinion,the “stabbing buffalo” and “planting a bombax ceiba tree”festivals are remarkable. However, these two festivals havethe same nature, it is the sacrifice to pray for a peaceful andhappy life. In this article, the author indicates the “eatingbuffalo” festival in Mnong Nong and Mnong Preh groups, themeaning of this belief. Besides, the author also introduces theother forms of magic and beliefs in the contemporary life ofthe Mnong community such as amulets, stone worship,reincarnation