with the rise of the digital economy，various new commercial activities with the Internet as their platform have flourished，which have created new and growing job requirements such as couriers and deliverymen for takeaway. Beijing，as a pioneer of the digital economy，gives close attention to the new commercial activities and their employees. Based on the investigation and analysis of the couriers in Haidian District of Beijing，this chapter discusses the specific grass-roots governance mechanism of the new employment groups from social integration，social support and social participation，and puts forward current problems and countermeasures. This chapter argues that the new employment groups，while contributing to the economic and social development of Beijing，are facing a series of problems such as the shortage of rights protection and the lack of social participation. Beijing has made certain achievements on grass-roots governance mechanism of the new employment groups，and has encountered challenges that require more works on Party development，services，incentives，science and technology. Moreover，Beijing needs to ensure the healthy and sustainable development of the new employment groups in the capital，and to further promote the grass-roots governance towards those employees，thus achieving the modernization of urban management.