E-commerce promotes online and offline integration and drives the traditional industry transforming and upgrading. It enjoys prominent advantages in terms of lowering circulation costs, lifting operation efficiency and diversifying service channels. It also has continuously expanding and deepening impacts on many fields including commodity circulation and production, financial service, culture and sports, transportation and travelling, health and medical care, education and training. E-commerce, via providing new service and market, has promoted traditional industrial process transformation and operation mode innovation as well as upstream and downstream industrial chain coordinated development, uplifting the efficiency of resources allocation. E-commerce has already and will continue to make a greater contribution to supply-side reform.