Abstract:Hanyuan Hall is located in the north of the Xiequyuan group at the east foot of the Summer Palace. This paper sort out the architectural evolution of Hanyuan Hall based on the archives and documents, and explains the interior nonstructural woodworks of Hanyuan Hall from the aspects of space arrangement, pattern type and size design based on the survey results. It is hoped that this study can provide practical and credible basic data for research in related fields.