Since the economic reform in 1978, Shanghai has experienced rapid growth and development. In the past three decades, Shanghai is one of the fastest-growing cities in the world. Today, the Central Government had issued, "Shanghai will not expand itself," according to Shanghai Masterplan 2017-2035. So, China's urban development is facing a turning point, from low-quality expansion to focus on the quality of urban development and the efficient use of land. As the Shanghai Huangpu River becomes increasingly dense and will continue to develop, our urban designers must rethink the quality of the space created during the densification process. We need to consider how to make our urban environment more livable, promote a walking experience and a more active lifestyle. Therefore, the author hopes to use density as a starting point to explore the relationship between density and urban quality. The author focuses on three main concepts of quality: Mixed-use, Connectivity, and Identity. Furthermore, based on density typology to understand the riverfront urban environment and deliver quality from multi-scale design.