Lighting has always been a critical factor in architecture, and with the development of lighting technology, a variety of lighting products can meet the need for different scenarios. The most common residential lighting is the general light source such as incandescent lamp and energy-saving lamp. The ceiling lamp can create a uniform and soft atmosphere, and the floor lamp can change the color of light according to specific occasions. In public places, LED lighting is widely used. Compared with other light sources, LEDs have small volume, no filament, long service life, low energy consumption, low pollution, no stroboscopic, high color rendering, and can be arbitrarily combined with other electronic components, achieving various lighting effects. With the rapid development of technology, lighting has gradually gone from providing illumination to providing more comfortable interior atmosphere. Smart lighting is a new trend of lighting technology development. It not only has energy-saving characteristics, but also has the features of intelligent scheduling, color modification, sensing, remote control and so on. Lighting is not only related to illumination level, but also related to the level of home decoration. Good lighting can not only create a good atmosphere, but also different lighting effects to promote the emotional imagination of people. The combination of lighting design and interior layout will bring out the best in each other and make the space more meaningful.