As a typical "rice-planting" civilization, folk beliefs of the Zhuang people form a unique culture, namely, "the Zhuang style". From the perspective of metaphor and conceptual integration theories in cognitive linguistics, the paper attempts to explore the internal cognitive mecha-nism of folk beliefs of the ancestors of the Zhuang people based on the beliefs of "formation of the world", "creation of ox" and "invention of scripts". It argues that metaphor serves as the cognitive basis of folk beliefs of the Zhuang people. The ancestors of the Zhuang people constructed abstract concepts by means of non-propositional sensory-motor image schemas and produced new concepts by optionally projecting and blending the abstract concepts. It is rightly that the innovative conceptual blending of theancestors created numerous unique folk beliefsof the Zhuang people. It demonstrates that a cognitive approach offers an effective way to investigate the cognitive operation mechanism behind the Zhuang’sfolk beliefs as well as the universality of human cognition and cul-tural variation under unique ecological environment, thus promoting the understanding and research of folk beliefs of the Zhuang people.