Content: Chapters: 1 - Overview on research materials, approach & concepts. 2 - Vietnam borderline areas (Vietnam - China; Vietnam - Laos; Vietnam - Cambodia) and the research locals (communes). 3 - Current real cultural situation in the context of sustainable development in borderline areas. Ethnic culture. National culture. Mass culture. Hybrid culture. 4 - The culture's impacts towards sustainable developments (socio-economy, national defense & security) in borderline areas. 5 - New context, conditions, new developments. Conclusion. References. (From the Publishing House).