Lighting plays an important role in people's daily lives. Lighting is used to understand the environment, increase visibility and improve the appearance of space. Lighting is an important part of the design of human environment in outdoor space, residential space and production places. Generally speaking, lighting can be divided into two categories: natural lighting and artificial lighting. Natural lighting includes all kinds of lights from the sun and self-luminous objects. Artificial lighting is the lighting that humans use to re-create the environment. Lighting can be used to enhance the overall atmosphere and create a more vivid and profound emotional experience. Lighting design is an important element of modern architectural design. It is necessary to ensure the balance between illuminance and brightness, before considering the effect of lighting. In addition, the actual understanding of the application of lighting in different fields should be taken into account. When choosing lighting, the three primary colors should be considered: white, warm white, and yellowish. Different lights can be combined to create different emotional atmosphere. Lighting can also be divided into dynamic and static lighting according to different lighting functions. Dynamic lighting provides function guidance to the environment, generating rhythm and dynamism. Static lighting is mainly used to provide a pleasant feeling environment with bright colors. In conclusion, lighting is an important part of our daily lives. A successful lighting design can effectively create a comfortable and harmonious indoor and outdoor atmosphere.