Abstract: In the process of urbanization, the vitality of the mother tongue of many ethnic minorities has been affected to a certain extent. What is different from this phenomenon is that the vitality of the mother tongue of the Bulang people in Mangjingshangzhai, Jingmai Mountain has not declined, but has become more vibrant. Based on the first-hand materials obtained from field investigations, the article analyzes the historical and practical reasons for the good inheritance of the mother tongue of the Blang people in Shangzhai, Mangjing, namely the geographical distribution of high concentration, the high frequency of intra-ethnic marriage, and the origin of the Blang people. The main focus is on small villages, the revival of national culture, the enrichment of material life, and the declaration of intangible cultural heritage.

Key words: In the process of urbanization, Mother tongue protection and inheritance , The Bulang nationality