In recent years, with the rapid development of LED technology, light strips, as a "flexible solution" in the field of lighting, have played an increasingly important role in home decoration, commercial space, outdoor projects and other scenarios. Among the many LED light strip technology routes, the competition between COB light strips and SMD light strips is particularly fierce. Both have their own advantages and disadvantages in terms of performance, cost, application scenarios, etc., triggering extensive discussions on the "future mainstream technology" within and outside the industry. This article will conduct an in-depth analysis from the perspectives of technical principles, market status, application needs, etc., and explore the future direction of the two technologies.