Furniture is composed of material, structure, appearance form and function four kinds of factors, in which function is the forerunner, is the driving force of furniture development; The structure is the backbone, is the foundation of realizing function. These four kinds of factors are interrelated and restrict each other. Because the furniture is to satisfy people certain material needs and uses the purpose to design and make, therefore the furniture also has the material and the appearance form aspect factor.
The type, quantity, function, form, style and production level of furniture, as well as the occupancy at that time, also reflect the social life style of a country and region in a certain historical period, the level of social material civilization and the historical and cultural characteristics. Furniture is a country or region in a certain historical period of social productivity development level symbol, is a kind of life style miniature, is a certain kind of cultural form appearance, so the furniture condenses rich and profound sociality.