Maofu in Heqing district of Yunnan province is one of the folk molding arts that have the most salient municipal features.

This paper makes a study of the general principles of folk plant classification, the traditional knowledge of wild plant collections and utilizations and the cultural symbols of plant and the relationships among them, sets up the frame of traditional knowledge, namely the systems of cognition, utilization and beliefs, and reveals the binary structures in the world of Xinping Dai peopl.