Abstract: The rapid development of digital economy uses digital knowledge and information as production factors to promote the development of the world into the digital age. The theoretical essence of digital labor in the capitalist production relations in the digital age is in deep agreement with Marx's labor theory of value， which lays a theoretical foundation for understanding the value trend of digital labor. The mirror image of the development of digital capital in the capitalist production relations in the digital age reflects the new form of transformation from data commodities to digital capital and the new characteristics of alienation of digital capital to digital labor， confirming the presence of Marx's critique of political economy and giving insight into the new boundaries of digital capital development. Digital labor still follows the theoretical approach of Marx's critique of political economy， indicating that its value trend is the collaboration and sharing of the decentralization of capital.

Key words: digital age; digital labor; capitalist production relations; value trend