Changzhug Monastery was built in the seventh century, located by the highway on the east bank of Yalong River in Nedong County, Shannan Prefecture. It has been repaired many times in various historical periods. It is said that Songtsen Gampo came and stayed here together with his wife Princess Wencheng after he established the capital in Lhasa. And Princess Wencheng planted the willow trees around the monastery. The monastery houses a precious Thangka picture of Buddha inlaid with pearls and gems, which is the precious treasure in this monastery. It is 2 meters long, 1.2 meters wide, with 29026 pearls, 1 diamond, 2 rubies, 1 sapphire, and 15.5 gram gold on it.