Abstract: In the construction and use of the SichuanXizang and QinghaiXizang highways， it is found that the extension and expansion of the roads have a positive impact on the enhancement of the awareness of the Chinese national community among the people of all ethnic groups along the road， and the SichuanXizang and QinghaiXizang highways have realized the effective integration of geographical space resources and the high coincidence of social space， further enhancing the “five identities”. Especially in the new era of continuous promotion of the strategy of transportation power， under the structural framework of “road as the medium”， explaining the dual significance of “two roads” connecting the mountains and rivers of the motherland and promoting the integration of all ethnic groups has a significant role in promoting the formation of the Chinese nations sense of community.

Key words: road construction； “two roads” spirit； build a strong sense of community for the Chinese nation； intermediary

摘要： 在对川藏、青藏公路的修筑与使用的研究中发现，道路的延伸与扩展对沿线各族群众中华民族共同体意识的提升有积极影响，川藏、青藏公路实现对地理空间资源的有效整合、社会空间的高度重合与情感空间的深度融合，进一步增进“五个认同”。特别是在交通强国战略持续推进的新时代新征程中，在“以路为媒”的结构框架下，阐释“两路”与“两路”精神连接祖国山河、推进各民族通达交融的双重要义，对进一步推动铸牢中华民族共同体意识具有显著作用。

关键词: 道路建设；“两路”精神；铸牢中华民族共同体意识；媒介