西藏自元代正式纳入中国的版图后，历代中央政府对西藏都进行了有效的管理和统治。特别是清王朝在总结吸收前朝统治管理经验基础上，对西藏的统治管理制度进行了力度较大的改革，采取了一系列重大军事措施，开始在西藏驻兵戍防，这对于加强中央政府统治管理，阻止外来侵略， Since Tibet was formally incorporated into the territory of China in the Yuan Dynasty, successive central governments carried out effective management and rule over Tibet. In particular, on the basis of summing up the former management experience of the reign of the Qing Dynasty, the Qing Dynasty carried out greater reforms in its governing and administering system and adopted a series of major military measures to start garrison and defense in Tibet. This is of great significance to strengthening the Central Government Dominate management, stop foreign aggression,