在现存唐宋时代建筑的平、立、剖面中,可以发现十分有规律的比例,涉及建筑的各重要部位。这些比例与中国古代思想中的所谓“天圆地方”、“外圆内方”等观念有关,是一些方圆关系的体现。在实例数据的基础上,本文试图建立可能存在的理想比例关系的数学模型,以探讨其中存在的规律。 In the existing Ping, Li, and Sections of the Tang and Song dynasties, it can be found that there are very regular proportions involving all important parts of the architecture. These proportions are related to the so-called “circle of the heavens” and “circumference inward” in ancient Chinese thought. Based on the example data, this paper attempts to establish a mathematical model of the ideal ratio relationship that may exist to explore the existing laws.