This paper aims to provide a preliminary analysis of the relation between the Three Disciplines as mentioned in Early Buddhism and that in Humanistic Buddhism as advocated by Venerable Master Hsing Yun. Through an understanding of the teachings from the Agama sutras and an analysis of the doctrines provided, one can see that the Humanistic Buddhist exegesis was already present in early Buddhist thoughts. This also demonstrates a continuing link from early Buddhism to Humanistic Buddhism. Similarly, through Venerable Master Hsing Yun's model of Humanistic Buddhism, we can also discover the connection between early Buddhist thoughts and the humanism as demonstrated in Mahayana Buddhism.