关键词: “两路”精神；铸牢中华民族共同体意识；民族团结；西藏自治区

Abstract: Before the SichuanXizang and QinghaiXizang highway were built， Xizang people had to overcome the obstacles brought by the road in the process of communicating with other nations. After the founding of New China， “in order to help brothers”， the powerful roadbuilding army overcame many difficulties and built “two roads”. In this process， people of all nations worked together to write the Xizang chapter of national unity. The victory of “two roads” narrowed the gap between nations， promoted national exchanges and enhanced cultural consensus. Digging deep into the national unity thought in the “two roads” spirit， exploring the connection between “building roads” and “consolidating the sense of community for the Chinese nation”， is of great significance to guide people of all nations to see the national trend and the future， deeply understand that the Chinese nation is a community with a shared future， and promote the exchanges and integration of all nations.

Key words: “two roads” spirit； consolidating the sense of community for the Chinese nation； ethnic unity；Xizang