As a new factor of production, data exerts a significant impact on the transformation of traditional production methods. Due to the deep involvement of capital in the development of the digital economy, digital technology has been dominated by the logic of capital, becoming a tool for profit-seeking. Consequently, digital technology itself has acquired attributes of production relations, referred to as "digital power." This is manifested in the use of big data''s "feedback-control" mechanism to manipulate consumers, the employment of unstable work arrangements and algorithmic control over laborers, and the dominance of digital capital over other forms of capital and social production. However, this does not imply that digital power originates from technology itself. Through an analysis of the integration of digital technology, represented by big data, and capital, this paper argues that digital power is an expression of capital power in the digital era. The dominance wielded by digital capital over labor and profit distribution ultimately stems from the private ownership of capital or the means of production and the resulting class relations. Under digital capitalism, the essence of capitalist production remains unchanged; only its external form has been altered.