Photovoltaic coated glass refers to the preparation of one layer or multi-layer film on the glass substrate to reduce reflection, improve transmittance, and improve optical performance and environmental aging resistance, so as to improve the power generation efficiency of photovoltaic modules. In this paper, the basic principle of photovoltaic coated glass is introduced, and the optical properties and microstructure differences of different products are analyzed by comparing film structure, film thickness, porosity and other factors of typical products. Combined with market demand and cutting-edge technology, the development trend of photovoltaic coated glass is discussed from the perspectives of multi-functionalization, sheeting, customization, and environmental protection. The application under extreme environmental conditions such as the marine environment also poses new challenges to photovoltaic coated glass. The relevant results can provide reference and basis for the production and research of photovoltaic coated glass, and also provide ideas for product development and market expansion.