Abstract: Common prosperity in people's spiritual life is a defining feature and practical proposition of Chinese modernization. As a paradigm of digital cultural production in the new era, the rise of new mass literature and art has provided a significant vehicle and expansive arena for advancing the common prosperity in people's spiritual lives. It breaks down the monopoly of literary and artistic production through technological empowerment, thereby consolidating the material foundation for spiritual common prosperity. It revitalizes nationwide creative vitality through subject reconstruction, broadening endogenous pathways to spiritual common prosperity. It builds inclusive communication networks through transformative dissemination, enhancing the allocation efficiency of spiritual common prosperity. However, in the process of practical implementation, challenges persist, including the erosion of spiritual nourishment by the logic of capital, the obstruction of shared spiritual consensus by algorithmic enclosure, and the exacerbation of spiritual life stratification due to disparities in digital literacy. These issues constrain the formation of the "common" foundation for spiritual common prosperity. Therefore, efforts should be directed at reshaping the supply ecology of spiritual production through value guidance, constructing a public space for spiritual interaction via algorithmic governance, and consolidating the subjective foundation for spiritual common prosperity through digital inclusion, so as to maximize the spiritual impact of the new mass literature and art and ultimately realize the grand vision of common prosperity in people's spiritual life.

Key words: new mass literature and art, common prosperity in spiritual life, technological empowerment, communicative transformation, digital rural development, digital labor