With the continuous deepening of globalization and digitalization, cross-border e-commerce (CBEC) has become a critical driving force in promoting international trade and global market development. CBEC not only reshapes traditional trade models but also provides unprecedented internationalization opportunities for small and medium-sized enterprises (SMEs), significantly enriching consumer choices and fostering the prosperity and diversification of the global market. Despite the rapid development of e-commerce, there remain numerous challenges in various areas that require further in-depth research and exploration. For instance, how technology can continuously drive the development of CBEC, how consumer behavior adapts to this emerging model, how trade processes can be optimized to accommodate digital transformation, and how CBEC can promote sustainable development and brand internationalization. The answers to these questions are crucial for a comprehensive understanding of CBEC and are the focus of both academic and industry attention. This paper aims to review and analyze the development trends of CBEC, delving into six aspects: technological drivers, consumer behavior, trade process reconstruction, challenges faced, sustainable development, and brand internationalization. The goal is to provide valuable insights and experiences for the further development of cross-border e-commerce.