Taboo is one of the universal culture which has been handed down by ordinary people, and it belongs to folk category. From ancient times most of the ethnic all over the globe have preserved their own taboos regardless of their economic power's high and low. In some cases the contents and types of taboo are identical each other, also in some other cases totally contrary. As society's development, we can easily find out from the history that binding force of taboo for human beings has been dramatically decreased, or most of it has already lost its power, or not able to display its strength any more. Comparing with taboo's long history of manipulating human society both in mental and psychology, studies for the reasons of taboo culture's gradual declination seem insufficient. People's point of view for taboo is also not identical. Relatively scientific persons regard taboo as nonsense, claiming that it should be abolished due to its feudalistic and superstitious residue. On the contrary relatively ignorant persons still tend to have a blind faith in taboo's mysterious power. History of taboo as a part of accumulating culture of human beings is far longer than our imagination, also has full of variety in its kind. The initial taboo mostly begins with public interests, and gradually started binding person's ideology, morality, religion, language, and behaviors. So within taboo we can find the trace of primitive stage of human beings who lack in conception, and also can find people's desire and illusion which reflects initial psychological state of human beings. From primitive times, people have created cultures by struggling with nature. They got accustomed to culture which invented by their own hands, and also created religion to maintain social order. Taboo is an ancient form of incorporeal law invented in the process of productive activities, daily lives, and creation of religion. Taboo is also sort of thinking method or life style which helps human beings to gain more things and keep them safe from struggling against nature. Generally taboo is categorized as one of folklore. It also belongs to a part of shamanism. While shamanism is a positive activity which leads certain outcomes, taboo is a passive one to avoid misfortune or ill luck. This thesis is mainly based on both field research and documentary study. First of all, I've collected taboo culture of each ethnic, and analyzed each type centering around anthropology, folklore, and theological theory of the Altaic group of language in China. I've also done a field research on the representative ethnics, and got information from visiting scholars and aged men of each ethnic. In addition, I've collected mythology and legend in order to inquire into the derivation and significance of taboo. Simultaneously through study of cultural functionalism, psycho-anthropology, structuralism cultural relativism, and Marxism theory, I've analyzed taboo culture of each ethnic, and finally deduced its characteristics and functions. There are fifty-five ethnics in mainland of China, but I've contemplated only the ethnic of Altaic group of language in this thesis. Turki, Mongolian, and Manchurian-Tungus ethnics belong to Altaic group of language. There are seven ethnics such as Weiwuer, Hasake, Keerkezi, Sala, Yugu, Wuzibieke, Tataer in Turki group of language. The ethnic of Mongolian, Dawoer, Tu, Dongxiang, Baoan belong to the Mongolian group of language. In Manchurian-Tungus group of language, there are Man, Xibo, Hezhe, Ewenke, Elunchun. Though Chaoxian ethnic belongs to the Altaic group of language, I've purposely excluded it from my research. There are two reasons. The first reason is because current culture of Chaoxian ethnic was derived from Korea, and the other one is that its history only began in 1952. Besides, most of the current Chaoxian culture has been changed a lot, or lost its peculiar tradition. To achieve the main purpose of the thesis, I've divided each ethnic taboos into nine categories such as a religious taboo, a productive taboo, a reari
