When Buddhism was founded,it advocated both the concept of anatman and the concept of Samsara. In fact,there are contradictions or difficulties in advocating the two concepts together. But the concepts of anatman and Samsara are both important to Buddhism. In order to solve these contradictions or difficulties,Buddhism put forward various concepts or terms to resolve such problem as it developed. In early Buddhism,the concept of vijnana in dvadas'nga-prtityasamutpada could play a certain role of Samsara subject. But the explanation about it in the literature relevant is not very clear. In sectarian Buddhism,some schools presented the disguised atman,such as pudgala. In Mahay ana Buddhism,some concepts,such as tathagata-garbha,in fact provided a certain support for the subject or entity in Buddhist samsara theory.Madhyamika further clearly held that vij`qna could play the role of samsara subject. Yog acara's concepts of alay avijnana and manas in its eight consciousnesses subtly solved the problem of Buddhist samsara subject. These Buddhist schools or scriptures in history often raised the concept which could play the role of samsara subject,and also sticked to the concept of anatman. This circumstance has shown that these Buddhist schools or scriptures can effectively adjust their theoretical system in developing,and they have made an important contribution for the smooth development of Buddhism and becoming the world cultural system.These Buddhist schools or scriptures in history often raised the concept which could play the role of samsara subject,and also sticked to the concept of anatman. This circumstance has shown that these Buddhist schools or scriptures can effectively adjust their theoretical system in developing,and they have made an important contribution for the smooth development of Buddhism and becoming the world cultural system.These Buddhist schools or scriptures in history often raised the concept which could play the role of samsara subject,and also sticked to the concept of anatman. This circumstance has shown that these Buddhist schools or scriptures can effectively adjust their theoretical system in developing,and they have made an important contribution for the smooth development of Buddhism and becoming the world cultural system.