2017 China E-Commerce Innovation and Development Summit and China International Exposition on Big Data were held simultaneously in Guiyang on May 25th to May 28th, 2017. National Engineering Laboratory for E-Commerce Technologies of Tsinghua University and China Center for Internet Economy Research of CUFE jointly released the latest e-commerce index reports -2016 China E-Commerce Development Index Report and E-Commerce Platform of Economic Monitoring, Forecasting and Policy Simulation. The E-commerce platform offers scientific evidences for government’s decision-making and marco-economic control.