Abstract
When considering polyandry which is one of the marriage forms of the Tibetan,to pay attention only about the distribution of polyandry and their family which was done by the conventional research. It focuses on the wife of polyandry and it analyzes from where the wife married in and in what process it married and also whether or not the wife recognized that it did polyandry no matter how. By moreover, that analyze to be related between the coming village of the wife and the village in the marrying-in place and so on from the role which exists in the village. It considers the forming mechanism of polyandry from the view point of the woman who becomes a wife.