With the development of science and technology civilization, the importance of light environment to the construction of urban night landscape is increasing obviously. It has also become a key content for local governments on the construction of "night tourism economy". In order to improve the quality of the urban light environment and avoid the "overuse" of lighting engineering, this paper puts forward three principles of "being effective" based on "people orientation", "being moderate" to match the local environment development and "being accurate" through preference setting of human settlement environment, to highlight the depth and width of design expression of lighting design from point of view, amplitude and frequency of landscape narration. It is hoped to help "night tourism economy" academically through benign landscape narration and truly achieve the excellent urban connotation of "beautiful appearance, rich landscapes and manifest culture".