Abstract:This paper collects typical examples of wooden buildings of Tang and Five Dynasties, and studies the correlation between materials and the characteristics of the plane.Explore the correlation between building materials and the main plane scales such as the building care room, the step frame average value, the jump average value of the outer eaves, etc., preliminary inference: in the wooden structure buildings of the Tang and Five Dynasties, there is a proportional trend between the grade of building materials and the care.The ratio of material and step frame is in the range of 8.85~16.94, and the jump ratio of material and outer eaves is in the area range of 2.03~3.75.It provides some reference for the research of the scale law of ancient buildings.