Abstract: The fact that Yunnan is located in the southwest frontier with multi-ethnic, multi-language conditions decides the complexity of rural revitalization. The investigation into the role of national common language and script in the revitalization of rural industry in Yunnan is representative and valuable. Three hundred and seventy-two people from various regions in Yunnan related to the revitalization of rural industry are studied through questionnaire and interview at four aspects: the cognition, learning and use, the guidance of the use of Lingua Franca, and effect of the Lingua Franca on revitalizing rural industry. The shortcomings of Lingua Franca in promoting the development of rural industry are studied to put forward corresponding suggestions.

Key words: National Lingua Franca, rural industry revitalization, Yunnan