At early stage, the three forms of Goddess Guan Yin statues mainly belonged to Shakya belief system. The combined forms of it were positioned as following: Sakyamuni was in the middle, while Guan Yin and Maitreya, the two retinues, were respectively on both sides. In the spreading process of Buddhism from India to China, the three forms of Guan Yin statues began to convert to Amitabha belief system with its combination distributed like this: Amitabha took the central position, while the two retinues, Guan Yin and Mahasthamaprapta, served on either side. When Guan Yin converted in the three forms of statues which pertained two different belief systems, its image feature has also undergone certain changes.