The marriage etiquette and customs poetry of the Yi nationality in Wuding is the translation and annotation of the classic Bimo of the Yi nationality in volume 28. It contains the marriage etiquette and customs poetry orally created by the Yi people in Wuding County，Yunnan Province，and records the unique marriage etiquette and customs tradition of the Yi Nasu people. It contains the ecological thinking and ecological wisdom of the ancient Yi people. Starting from the theory of Chinese ecological criticism and the discourse of Yi traditional ecological philosophy，this paper excavates the ecological and cultural information in the marriage etiquette and customs of the Yi nationality in Wuding，investigates the harmonious relationship between man and nature revealed in the classics，excavates the ecological thinking and ecological wisdom of the ancient Yi people，and tries to realize the communication and dialogue of Yi and Han ecological civilization.