Abstract: “the Silk Road Economic Belt and the 21st-Century Maritime Silk Road”, a great initiative, is short for “the Belt and Road”, or “BR” . Its building and development is based on language communication. To meet the language demand of “BR”, language building should be included in the whole plan of developing “BR”, including learning and using of various languages, planning of language resources, preparing of language talents, to enhance the improvement of language competence and service. Furthermore, Chinese academic discourse system should be established, embodying Chinese characteritics, containing Chinese elments. Besides, the coresponding plan of language service and service system needs to be made in terms of the design of language application and discourse strategy. Meanwhile, it is also necessary to explore the pragmatic strategy of language use from the perspective of pragmatic to direct the practice of international publicity. The final purpose is to improve language competence to provide better service for the development of “BR”.