Abstract: With the deepening of our understanding of urban construction, our perception of urban streetscape has shifted from 3D space construction to spatial experience and perception. Based on visual cognition, urban streets are studied with visual cognition figures. The value of the screen occupancy rate reflects the landscape characteristics of streets, and the sample variance of the screen occupancy rate shows the continuity of the street landscape. Taking the build-to-line ratio as an influencing factor, this paper, adopting the correlation analysis, examines how the build-to-line ratio affects the landscape characteristics and continuity of the surveyed streets.