Abstract:This paper talks about the layout of the Tsogchin Halls in Mongolia, Amdo, and ü-Tsang in the fifteen-seventeenth century by examining the placing of the circumambulatory corridor. By analyzing the initial set up and latter elimination of the circumambulatory corridor, this paper has reached the conclusion that the models of the early Mongolian monastery were from the Huang River region of Amdo, instead the Gelug monastery ü-Tsang in the same century. It then analysis the concerns of architectural form and the political intentions behind that.