According to the nature, environment and corresponding standards of buildings, it uses material and technical means and architectural design principles to create an indoor environment with reasonable functions, comfort and beauty, which meets people's material and spiritual needs. This kind of space environment not only has the use value and meets the corresponding functional requirements, but also embodies the spiritual factors such as historical context, architectural style and environmental atmosphere. Clearly take "creating an indoor environment that meets people's material and spiritual needs" as the purpose of interior design.