After sealing the photovoltaic cells with tough composite materials, they are then installed on a modular design float. Floats come in different configurations and can be combined into large floating platforms. Users can freely walk on the floating platform, making maintenance more convenient. The modular SOLAR FLOATING PLATFORM can be assembled into a large-scale offshore solar power plant, solving the problem of insufficient land area and difficulty in installing large-scale photovoltaic power plants in many countries.