Thermal insulation coatings maintain a stable indoor temperature by forming an effective heat insulation barrier on the surface, reducing heat conduction. In recent years, with the enhancement of energy conservation and environmental protection awareness, the application scope of thermal insulation coatings has been continuously expanding, covering multiple fields such as residential buildings, commercial buildings, and industrial facilities. This type of coating is usually composed of high-performance polymers, ceramic particles and other additives, which can effectively reflect solar radiation while reducing heat loss to the outside. In addition to its excellent heat insulation performance, thermal insulation coatings also possess properties such as waterproofing, anti-corrosion and wear resistance, which extend the service life of buildings. In addition, its convenient construction and simple maintenance are also important reasons for its wide popularity. With the continuous advancement of technology, future thermal insulation coatings will pay more attention to environmental protection and sustainable development. They may adopt more natural materials and harmless chemical components to further reduce the impact on the environment. In conclusion, thermal insulation coatings not only enhance the energy efficiency of buildings but also make significant contributions to creating a comfortable living and working environment.