The rise of platform gig labor is the product of the combination of social development internal demand and technological innovation. Platform crowdsourcing data labeling labor is a typical form of platform gig labor. The development of artifi cial intelligence, the reform of enterprise production and organization mode, the need to alleviate employment pressure and other factors make it rise on a large scale. It is characterized by the Internet as the main tool of labor, the fragmentation and simplifi cation of work tasks, the high fl exibility and autonomy of labor, the weakening of social relations and the atomization of human beings. This new form of "platform + individual" has brought a certain impact and challenge to China's existing labor employment mode, labor relations identifi cation framework and social security system, which makes many gig jobs face the dilemma of unstable labor and income and lack of social security. Therefore, it is necessary to adjust the existing labor relations identifi cation standards, improve the social security system, guide the platform enterprises to assume the main responsibility, so as to better protect the basic rights and interests of gig workers on the platform according to their labor characteristics.