Tibetan Buddhist culture is very prosperous in Tibet, and it has also been highly concerned by other ethnic groups. Especially since the influence of Buddhism, the religious beliefs and rituals of Tibetan monasteries have been constantly developing and changing. The relationship between Buddhism and folk beliefs is a topic of universal significance in the history of Tibetan religious culture. The rich religious atmosphere of Tibetans has been a prominent feature of regional culture since ancient times. Regardless of the changes of years or the ups and downs of the times, folk beliefs and Buddhism, the two major religious cultures, reflect the trajectory of social changes with their fiery temperatures. Since ancient times, Tibetans have been a people who believe in witches and love ghosts, which is the best soil for cultivating folk beliefs. For the ancient people of Fujian and Vietnam, everything in the world has mysterious power, and an important theme of life is to coordinate their relationship with nature elves. Ancient Tibetans have rich contents of folk belief worship. On the one hand, it can be understood through modern Tibetan folk customs; On the other hand, many contents of Tibetan folk beliefs were absorbed by later local religions and even localized Buddhism, and integrated into local religions and Buddhism. Therefore, if some contents of Tibetan Buddhism and Buddhism can be traced back to the source, their sources can always be found in folk beliefs. Tibetan areas, especially Amdo pastoral areas, have a unique geographical and social environment, and folk beliefs under the influence of Buddhism in this area should be a very important academic research field. In this case, the religious culture of monasteries has always been concerned by scholars, but there is little research on folk religious culture. Therefore, Amdo pastoral area is a typical representative to study the relationship between Buddhism and folk beliefs. According to the author's investigation and data collection, it is found that the study of Tangke's humanities in Amdo has not been paid due attention. Therefore, based on the religious customs in Tangke area, this paper discusses the folk culture closely related to religion, such as folk thoughts, customs and social activities, which are deeply influenced by Tibetan Buddhist culture. This paper includes three parts: introduction, text and conclusion. The introduction involves the research purpose, research methods and the latest trends of folk culture research. Up to now, there are only two historical works about Tangke pastoral area, one is A Mirror of the Tribal History of Amdo Tangke by Gong Qiu and The Divine Comedy of the Yellow River by Qu Ping of Luo Rang, both of which describe the history of modern Tangke and the history of temples. Although Tibetan studies are now a hot topic in academic circles, especially the research on Tibetan Buddhist teachings, teaching methods and temple religious culture is endless. However, there are few studies on folk beliefs and folk culture under the influence of Buddhism, especially the case of Tangke folk beliefs and folk culture, which has not been investigated by scholars at present. The first part of the paper first summarizes the customs, natural environment and characteristics of Tangke area, as well as the living conditions of herders. At the same time, it briefly introduces the history of Shihecang Temple in this area by expounding the origin of Tangke people. Tangke area is a pure nomadic area, and this unique natural and living environment is the background of folk customs in Tangke area. Understanding the production and living environment in Tangke area is very helpful for us to study the folk beliefs and folk culture in this area. Sihecang Temple has a great influence on the folk beliefs and folk culture in Tangke area, so it is necessary to make a brief discussion and introduction on the background, mainly including the emergence, development and present situation of Sihecang Temple. This part also expounds the relevant aspects of Sihecang tribe. The second part is that Buddhist teachings have evolved into folk religions or customs after being introduced into the people. This paper mainly discusses the influence of Buddhism on people's behavior habits through folk stories, fables and folk interviews. The first section expounds the concept of causality, people's understanding of causality, practice and the role of causality. The second section defines the concepts of this life and the afterlife, and discusses people's cognition of this life and the afterlife, fate and blessings, as well as worship customs related to later generations. However, this view of immortals does not conform to the original intention of Buddhism. For example, take Tangke pastoral area as an example, where there are Buddhist temples and people believe in Buddhism, but this view of gods is everywhere. The biggest difference between Buddhism and other religions lies in the idea of "atheism". I also think that the origin of the world and the original intention of Buddhism are far from each other, so the author briefly introduces the basic theory of Buddhism to compare the differences between folk beliefs in pastoral areas and Buddhism and the influence of Buddhist thoughts on folk beliefs. This part mainly combs and discusses the characteristics of folk beliefs, such as the concept of karma, the idea of afterlife and the concept of compassion. The third section expounds people's views and cognition of impermanence. Impermanence is one of the most fundamental viewpoints of Buddhist thought. Only by understanding and understanding the concept of impermanence can we open the door to understanding Buddhism. For Tibetan Buddhism, the most important factor for its development and prosperity in snowy areas is that its impermanence view has fundamentally changed the ideological cognition and appeal of Tibetan believers. Therefore, the concept of impermanence has become one of the fundamental manifestations of Tibetan folk beliefs and cognition. The folk beliefs and culture of Tibetans in Tangke area also reflect this point. It can even be said that due to its unique nomadic cultural background, the concept of impermanence in folk beliefs in Tangke area is more religious and pious than that in Tibetan agricultural areas. The fourth part discusses the oath and practice of folk compassion. Folk beliefs and their folk culture have emerged and changed with the development of people's production and life. The history of folk beliefs and folk customs is the history of a nation's development, which is far longer than religion and wider in content. However, due to the integrity and advancement of its theoretical system and the stylization of its religious rituals, after religion was introduced and developed in a region, its theories and ideas spread to all aspects of folk beliefs and cultures in an instant, which had an important impact on the changes of folk beliefs and cultures. Due to the influence of Tibetan Buddhism, the content and form of folk beliefs in Tangke area have changed greatly. The author mainly discusses the following aspects: First, the folk blessing ceremony and its changes, mainly reflected in the choice of blessing date, the change of blessing object and praying personnel; The second is diet, clothing changes and taboos. Diet and clothing are the external manifestations of a nation's material culture. With the introduction of Tibetan Buddhism, great changes have taken place in the diet content, eating habits, clothing types, clothing decoration and folk taboo culture in this area. The most basic feature is that the origin of these folk customs has begun to penetrate into the relevant ideas and contents of Tibetan Buddhist culture. The third is the generation and change of oath. The third part discusses the annual sacrifice, ritual and folk activities in Tangke area, namely: first, summer activities, mainly introducing the folk religious activities of the Tibetan Rabbit Moon, the simmering activities of the Tangke tribe of the Tibetan Niuyue, and the ritual process of the Tiger Moon celebrating Mother's Day, and making a brief analysis one by one. Second, winter activities, mainly about the sacrificial activities of Ma Yue in Tibetan calendar, the wedding custom culture of sheep and moon, and the "Sodom" ceremony of monkey and moon. The third is the autumn religious activity ceremony, which mainly discusses the "hot" star ceremony, the snake moon activity and its cultural characteristics. Fourth, the religious activities in spring, which summarized and analyzed the activities such as the Chicken Moon Dafa Meeting, the Dog Moon Golden Bridge Activity, and the Pig Moon "Holding it". These folk religious customs are mainly embodied in two aspects, namely, the folk religious customs produced from the ideological level and the folk religious customs formed in daily life. Folklore, whether it comes from ideological level or from daily life, is deeply influenced by Tibetan Buddhist culture, but it is different from the teachings of Tibetan Buddhism in content and expression. The fourth part discusses the role and value of Tibetan Buddhism to folk beliefs and folk customs. Folk customs with Tibetan Buddhist characteristics not only have social value. It is mainly reflected in the role of Buddhism in building a harmonious society and its positive role in people's ethics, which are produced by combining folk beliefs and folk culture in content and form. The practical significance of this paper lies in the positive role and educational significance of Buddhist thought in people's minds. Buddhism has been committed to reform to adapt to the times, so in the process of development, Buddhism in China takes the establishment of Buddhism suitable for human beings as the core of its reform. At present, superstition is the public enemy of society, so it is common sense to establish human Buddhism. The construction of so-called human Buddhism mainly includes two aspects: first, as a kind of life accomplishment, it has positive significance in improving people's cultivation and moral quality, and we can also call it a kind of life Buddhism, which embodies a philosophy of life; On the other hand, Buddhism plays an active role in serving the society. Admittedly, due to the limitation of research ability and research level, this paper still has many shortcomings, mainly because it fails to examine various beliefs and folk customs from the perspective of literature and art: First, it discusses the relationship between folk culture and literature from the perspective of literature, especially the relationship between folk customs and folk popular literature. Secondly, from the artistic point of view, that is, the art of Tibetan Buddhist statues, these studies are not only the study of art, but also the analysis of faith. Studying from these different angles is of great significance to the evolution of Buddhist thought in Tibetan areas, and is also of great help to our understanding of folk beliefs and folk culture. This is also a place worthy of further study and improvement in the future.