Thechange of user behavior and demand is the major driving force of digitaltransformation of Telecom industry. Due to Internetization and digitalization, ROADS(Real-time，On-demand，All-online, DIY and Social) becomes new benchmark of digitaluser experience and demand. A new agile digital operation model is pivotal toprovide ROADS user experience, enable digital transformation and realize themaximum business value of service providers. Telco OS is a vision, solution andoperation system for Telco digital transformation, which aims to provide fastresponse to customer need through the orchestration of business enabling,infrastructure enabling and big data engine. Telco OS is not only a platform,and software/hardware products, but also enabling system for different users.For end users Telco OS serves as digital marketplace for digitalized telecomproducts and other types of digital merchandize; for operators Telco OS servesas an integrated development and operation system; for partners Telco OS servesas channels and business development platform.