The ecolinguistics is formed by the integration of ecology and linguistics. The bilingual teaching in minority area of Yunnan province is a complete ecosystem. Based on the ecolinguistics, the paper analyzes and reveals the ecological construction elements of bilingual teaching in Yunnan ethnic areas，which includes: the environment, funds, teaching materials and teachers. They are closely related. At the sametime，the corresponding construction idea is pointed out so asto promotethefavorable development of bilingualteachinginYunnan ethnic areas.