There aren't many historical materials from Nanzhao and Dali kingdoms, which is a big problem to the historians. Fortunately, a lot of temples with many historical pictures were built in Nanzhao and Dali kingdoms, and two of those religious pictures have been kept till today: one is Nanzhao Illustrations and the other one is Buddhism Pictures from Zhang. The former one portrays many Buddhas, Bodhisattvas, Brahma and kings, which is a symmetrical combination made up by static images; while the latter one tells the story about Avalokitesvara's seven changes and the establishment of Nanzhao kingdom, that is, how the belief of Nantian Esoteric Buddhism Avalokitesvara in southeast Asia was brought into Nanzhao and gradually adopted by the royal families in Nanzhao. The two paintings have been tentatively studied by the scholars from both sides of Taiwan straits, which is very significant to the religious culture study in Nanzhao.