Epang Palace, Archaeological site in Weiyang District, China

Epang Palace is an unfinished Qin palace complex whose remains lie at the junction of Chang'an and Weiyang districts in Xi'an, Shaanxi. Its front hall survives as a rammed-earth platform about 1,200 m east-west and 410 m north-south, 7 to 9 m high, with a five-stepped north side and a large plaza to the south.

Work on this imperial complex began under Emperor Qin Shi Huang, but construction was never finished. When the Qin dynasty ended two centuries before the common era, the project remained incomplete and fell into ruin over time.

The name Epang is a provisional one: the palace was to be renamed once finished, and its meaning is debated, with one reading taking 房 as a variant of 旁, "vast". Du Mu's Tang-dynasty fu poem fixed the tale of Xiang Yu burning a completed palace, a story archaeology overturned in 2002. A Northern Dynasties Buddhist temple later stood here, and after the Tang and Song the ground became farmland.

The site covers about 6 square kilometres at the junction of Chang'an and Weiyang districts, with the front-hall rammed-earth platform in the second zone as the main feature; its top is 7 to 9 metres high and its north side steps down in five terraces. Ground is dirt and uneven, so wear sturdy shoes. The Shangtiantai mound, 14.98 metres high and 230.4 metres around, stands south of Epang village.

The 2002–2007 excavation of the front hall found no traces of burning, contradicting Du Mu's Tang-dynasty fu, which had claimed Xiang Yu burned a finished palace. The dig showed construction stopped at the foundation stage: three walls were built, then work halted. A Tang poem shaped the site's image for a thousand years.