Mahayana (the great vehicle) and Śrāvakayāna (the vehicle of the hearers) are included in Buddhism; the teachings that originated in India branched out to China and Tibet and eventually spread to all corners around the world are referred to as Mahayana Buddhism. In the moment, this is the mainstream subject of study among Buddhist academia. Nagarjuna’s contribution in propagating Mahayana Buddhist philosophy is considered indelible. The Madhymika (the Middle Way School) founded by this great scholar. Among all Nagarjuna’s disciples, Aryadeva is undoubtedly the most outstanding one, also a renowned scholar who is highly revered for his achievement. Given his importance in the history of Buddhism, I chose to investigate this legendary figure from The Great Tang Records of the Western Regions which was written by Master Hsuan Chuang and other articles, he has been mentioned in totally 37 times of 6 points in The Great Tang Records of the Western Regions: Śrughna, Praya^ga, Magādha, Kauśala, Cholya, Khabandhaand Conclusion. The aim of this thesis is to give more weight to factual information in order to provide a practical foundation for understanding and acknowledgement of this important figure, without reliance on mythical tales.
