This paper would focus on the Buddhist nuns who lived in Changan in Tang Dynasty and had great social influence. It also dealt with the social environment in the monasteries and outside the monasteries. There were a few epigraphs in Changan areas from which nuns recorded their life history and passed down to the world. We used these Buddhist nuns epigraphs and tried to discuss the Buddhist nuns interaction inside and outside the monasteries and through which to understand their self-identification, social images, and how they affected each other in social lives. In contrast with the Buddhist monks life, the Buddhist nuns epigraphs showed great features in their interaction with family members and some social members. On the one hand, the Buddhist Nuns were restrained by religious ordinations in the regular and religious lives; on the other hand, it is worthwhile to note that a lot of Buddhist nuns lived in the Buddhist monasteries but they were also closely tied up with their own family members, disciples and other social members. According to the epigraphs, it was found that the Buddhist nuns image in the religious and social lives in Changan in Tang Dynasty not only enables them to maintain good interaction with respectable society, but also helps to cultivate the social public during the whole Tang Dynasty.