Hanyuan Hall is the main hall of Daming Palace.It has been used for 223 years since it was built in 663.It is the place where state ceremonies and grand ceremonies are held.The first day,the winter solstice of the great court meeting,foreign diplomatic corps to visit,and change the yuan,accession,receive congratulations,amnesty,military parade of various ceremonies,ceremony are held here.Contain the base width between 11 yuan temple temple,nearly 76 meters,four deep,more than 40 meters,fully embodies the the"nine days ChangHe palace,the nations clothes a turban"majestic momentum.

Due to the large elevation difference of the terrain,the upper building of Hanyuan Hall is built above the three-story platform,with a huge volume and magnificent momentum.The restoration of the abutment recreates the basic structure and layout of the site,and the earthen remains of the Tang Dynasty are enclosed in masonry for permanent preservation.