The development of Internet technology not only cultivates young migrant workers who are more suitable for the network employment mode，but also builds a smooth digital platform for the sharing economy. When the employment mode of the sharing economy is combined with the powerful information processing function of the digital platform，the gig economy is thus developed，and naturally absorbs a large number of young migrant workers who grow up in this process. The outbreak of COVID-19 has released some free labor from enterprises that are struggling to survive. These workers have become an important source of online consumption services during the epidemic，such as online car hailing，food delivery，express delivery and e-commerce live streaming. In this process，the algorithm does improve the speed of task allocation and achievement，but it also gradually falls into the stage of alienation of workers. Practitioners are not only faced with difficulties such as high work intensity，low actual income，high occupational risk，and lack of social security，but also have the worry of being de-skilled. In the context of the epidemic，the mature flexible employment model has spawned a new business economy，and various laws and regulations have been issued to provide corresponding labor security for practitioners. Practitioners also tend to show their voice through trade unions and collective negotiation，so as to promote practitioners in the new business form to obtain more complete labor security.