Interior design is a subject that uses theoretical knowledge such as physical technology and architectural design principles to create an indoor environment that is reasonably functional, comfortable and beautiful, and meets people's material and spiritual needs according to the nature of the building's use, environment and corresponding standards. . This space environment not only has use value, satisfies the corresponding functional requirements, but also reflects spiritual factors such as historical context, architectural style, environmental atmosphere, etc.; clearly "creating an indoor environment that meets people's material and spiritual life needs" is regarded as the indoor The purpose of design, modern interior design is a comprehensive design for the indoor environment, which includes requirements for visual environment and engineering technology, as well as physical environments such as sound, light, and heat, as well as alternative psychological environments and cultural connotations such as artistic conceptions.