The Buddhist story of Angulimala who once to be a murder and later conver ted as a saint is known well around. By comparing with two kinds of Buddhist paradigms of Angulimala Sutta and analyzing their narrative structures and elements, this paper will tell the identity and difference of Angulimala stories between three versions of literatures, ie. Savaka sutta, Jataka story and Mahayana sutta. Moreover, we will point out the difference of Amgulimala stories between Savaka sutta and Jataka story is a kind of 'quantitative change' which effects no shift of Buddhist paradigms. But the difference shown in Mahayana version's Angulimala story is not only a kind of 'quantitative change', but also is a kind of 'qualitative change', for it causes the shift of Buddhist paradigms and changes Savaka paradigm into Mahayana paradigm. Further, we examine and make clear the strategic which Mahayana version reform Savaka sutta can be said as 'Hermeneutical Tactic of Mimicry'. We conclude that Savaka Buddhism is parasitized by Mahayana Buddhism and becomes an object who was converted by Mahayana Buddhism.