The historical conditions of Xuanzang’s sarira is a complicated problem, which has relation with the legend of monk Kezheng. In recent years, the statement of Xuanzang’s sarira once was buried in the Zige Temple of Zhongnan Mountain, have stimulated the arguments about opening the tower by Huang chao. The different opinions at the two conferences in Hu county and Xi'an, has caused wide concern of Buddhists and scholars. The paper will give a detai1ed account about the arguments, involving many historical problems about the bury of Xuanzang, opening the tower or not by Huang Chao, the religious belief of Huangchao, the problem which the Zige Temple is the third burial place of Xuanzang or not.