本文在单士元、傅熹年等先生的研究基础上,针对清乾隆时期改造而成的北京故宫寿康宫、南三所、宁寿宫三处院落的规划布局问题,结合史料所载大木尺寸、现场旌工详细测量所得的现状尺寸和直接量取的总图尺寸,尝试揭示古代匠人确定院落规模面积、落实各座主要建筑在院落中的平面位置和空间尺度等方法。 This article is based on the research of Mr. Yuan Shi and Mr. Fu Xiaonian, and discusses the planning and layout of the courtyards of the palaces of the palaces of Beijing, Shoukang Palace, Nansan and Ningshou Palaces, which were transformed from the Qing Dynasty and Qianlong periods, and combined with the large wood size and site contained in historical materials. The detailed measurement of the current size and the total size of the total maps were performed. The attempt was made to reveal how the ancient tradesmen determined the size of the yard and the implementation of the plane position and spatial scale of each main building in the courtyard.