Abstract: Integrating sustainable cellulose materials into electronic devices is a hot research topic in academic communities. Highly transparent cellulose film with high transmission haze is a kind of paper with special optical properties. In addition to the advantages (degradability, low cost, flexibility, light weight, etc.) of ordinary paper, it also presents high transparency and strong light scattering behavior (high transmission haze), and has the potential to use in solar cells as a green optical transparent material to improve the power conversion efficiency. In this review, the development process of highly hazy and transparent cellulose film was first introduced. Then, the preparation and properties (such as optical properties, mechanical properties, thermal stability and water resistance) of highly transparent and hazy cellulose films were summarized in detail. After that, the progress in the use of transparent and hazy cellulose film in solar cells was discussed. Finally, scientific and technical problems of highly transparent and hazy cellulose films for solar cells were summarized, and their challenges and future research direction were provided as well.