Nanzhao Dehua Stele, Stone monument in Taihe Village, China

The Nanzhao Dehua Stele is a rectangular stone slab standing 3.94 m tall, 2.28 m wide at the top and 2.4 m wide at the bottom, with a mortise hole in its top. It stands within the Taihe City site in Taihe Village, southwest of Dali, Yunnan. Its face carries 40 lines of text of over 3,800 characters written by the Tang official Du Guangting; erosion has left only about 100 characters legible.

The stele was erected in 766 by King Geluofeng of Nanzhao at the Taihe city site. Its 40-line text of over 3,800 characters, written by the Tang official Du Guangting, recounts Nanzhao's unification of the Erhai region and its relations with Tang China and Tubo, including the causes of the Tianbao War. In 1917 Li Genyuan raised the fallen stone; in 1961 the site was listed as a national key cultural relic.

The stele's text was written by Du Guangting, a Tang imperial censor, and praises King Geluofeng, especially his unification of the Erhai region. It also recounts Nanzhao's relations with the Tang and Tubo and the causes of the Tianbao War. With Fan Chuo's Manshu it is counted among the two most reliable records of Nanzhao society.

The monument sits in a protected location surrounded by structures that shield the stone from damage. A visit works best during daylight hours when the inscriptions are clearly visible.

Only about 100 of the stele's original 3,800-plus characters remain legible after centuries of weathering; the full text survives mainly through later transcriptions. The inscription is counted, alongside Fan Chuo's Tang-era Man Shu, as one of the two most reliable written sources on Nanzhao society.