In recent years，traditional e-commerce modes have encountered traffic bottlenecks，and social e-commerce has led e-commerce into a new era via Weibo，WeChat and live broadcasting. E-commerce plus social features can cut out many intermediate links of traditional e-commerce and cost. As a result the social e-commerce offers more opportunities for niche targeting. Based on social trust，social e-commerce is becoming more efficient. Group buying，distribution and other modes are quickly attracting traffic flow. Social e-commerce has become the “third pole” alongside the other two forms，namely platform e-commerce and proprietary e-commerce. Furthermore，mobile social ecommerce services are becoming more popular.