The relationships between Xinjiang and the central government in the past two thousand years are the basis of the Uygur’s national identity. The close political,economic and cultural ties have produced the internal demand of their national identity in terms of their national psychology and concept of administrative areas. The resistances against foreign invasions in the past and the recent cases like the ten-thousand people capturing some terrorists in Moyu and Hotan counties have showed that Xinjiang as an inseparable part of China is the shared understanding of the Uygurs. However,at the same time,the international impacts of Islamic fundamentalism,and the religious and nationalistic separatists induced by the religious extremists in Central Asia have posed a dilemma to the Uygur’s national identity.