Abstract:With the rise and development of the internet in China, the ecosystem has presented a new format in the field of e-commerce. Alibaba Group has formed a complete open system with its core e-commerce platform, user groups and cooperative institutions, and has become the important drivers of banking, IT, and logistics industry and other many industry sectors. This paper focus on the core business of e-commerce in Ali business system and the financial business supporting e-commerce system, studies how Ali Group can use internet technology to support local living services, health care and other infrastructure, and integrate into entertainment, smart terminal services such as games, video, music, etc. forming its own complete business ecosystem. Through empirical research on the coupling mechanism of Alibaba Group's industrial chain development level and industrial innovation capability, the paper explores the coordinated development level of Alibaba's business ecosystem and provides a reference model for more e-commerce enterprise layout development.