The study of the separation of religion and government in Tibet by scholars of Tibetan studies is relatively weak and not many achievements have been made,especially the research of the historical background,the process and the significance of the separation of religion and government by domestic scholars after the reform of Tibetan society.

A Letter Concerning Toleration by John Locke criticized the phenomenon of the union of church and state and the religious persecution of different religious sects, which happened in England at that time, and advocated the separation of church and state and the freedom of religion.

Though it is simple,it is a kind of political behavior in fact and has violated the principle of "separation of religion from politics"of Japanese constitution.

The American Constitution and the Federal Supreme Court s constitutional legal precedents have protected religious freedom as one of the basic human rights and specifically defined it in terms of freedom of religion and separation of the church from the state, making religious freedom a constitutional concept deeply - seated in the public mind.