On the stone wall, on the right side of the giant Buddha, there is a steep plank road spiraling from top to bottom on the giant Buddha. This is the famous Nine Bends Plank Road, which was excavated at the same time as the Buddha statue. Jiuqu Plank Road contains a folded sutra diagram, which is exquisitely carved with beautiful lines. What is more, it is engraved into the tower pavilion. It's of value in the study of Tang Dynasty architecture and stone engraving artistry.