1. Reorganization of space —— Create a reasonable indoor space environment by using design techniques such as cohesion, transition, contrast, unity and reality. That is, the general design idea is often said. 2. Spatial interface treatment-the structure and surface decoration treatment of walls, floors and roofs, matching and echoing each other's colors, and determining the construction technology and requirements. That is often said that the basic decoration project design. 3. Interior design-design indoor furniture, decorative structure, decorative embellishment and special components, including material use, detailed structure, process treatment, special materials and construction requirements. That is to say, the decoration project design is often said, which is the focus and difficulty of the whole home improvement design. 4. Acoustic environment design —— The requirements for indoor sound insulation, audio-visual and so on are dealt with on the basis of acoustic principles. 5. Light environment design-consider the indoor lighting, lighting and decorative effects as a whole to meet the dual needs of use and decoration. 6|, thermal environment design-comprehensive consideration of indoor heat preservation, heat insulation and air flow to create a comfortable indoor environment. In addition, the budget of home improvement is also an important content of home improvement design. Home improvement design is becoming more and more professional, standardized and professional, which indicates that the home improvement industry is moving from chaos and disorder to standardization and rationality. With the maturity of home improvement design service, the continuous improvement of design level and the further rationalization of consumers' design taste and home improvement consciousness, home improvement design will surely become the first element and "soul" of home improvement. Feeling; Paint pink is a "annoying" color, which is easy to make people angry, quarrel and quarrel frequently, so it is best not to use this color; Too much green will also make people depressed (generally speaking, the eyes should be close to green, but in fact, this green refers to the green of nature, not the artificial deployment of green); People in China always think that red is an auspicious color, but too much red will overload the eyes, so red can only be used as a few colors of collocation, not as a theme color; Those who have more yellow at home are depressed, which makes people's brain consciousness full of multi-layer hallucinations, and those who have neuropathy are most afraid of this color; Orange can make people full of life and feel warm, but too much orange can also make people bored. The best colors in the house are ivory, ivory and white, which are most suitable for people's visual nerve. Because sunlight is a white series, representing light, people's hearts and eyes also need light to reconcile, and the white series is best equipped with furniture, and the white series also represents hope. The primary color of wood makes people easy to get inspiration and wisdom, and it is the best tone. Especially in the study, try to use the primary color of wood as much as possible.