The article reviews the recent progress in using two-dimensional (2D) materials to enhance the performance and stability of perovskite solar cells (PSCs). 2D materials, such as graphene, transition metal dichalcogenides (TMDs), MXenes, and black phosphorus, are identified as promising solutions to address the long-term stability issues in PSCs, which are primarily caused by interfacial defects and susceptible metal electrodes. The review highlights the roles of 2D materials in both interface engineering and electrode applications, emphasizing their benefits in perovskite growth, energy level alignment, defect passivation, and blocking external stimuli. A particular focus is placed on the formation of van der Waals heterojunctions at the bottom interface, which significantly improve device efficiency and stability. The article also discusses future directions and challenges in the development of 2D material-based PSCs, including the design of high-quality van der Waals heterojunctions, enhancing the uniformity and coverage of 2D nanosheets, and developing new 2D material-based electrodes.The article reviews the recent progress in using two-dimensional (2D) materials to enhance the performance and stability of perovskite solar cells (PSCs). 2D materials, such as graphene, transition metal dichalcogenides (TMDs), MXenes, and black phosphorus, are identified as promising solutions to address the long-term stability issues in PSCs, which are primarily caused by interfacial defects and susceptible metal electrodes. The review highlights the roles of 2D materials in both interface engineering and electrode applications, emphasizing their benefits in perovskite growth, energy level alignment, defect passivation, and blocking external stimuli. A particular focus is placed on the formation of van der Waals heterojunctions at the bottom interface, which significantly improve device efficiency and stability. The article also discusses future directions and challenges in the development of 2D material-based PSCs, including the design of high-quality van der Waals heterojunctions, enhancing the uniformity and coverage of 2D nanosheets, and developing new 2D material-based electrodes.