Aluminium alloy frame is used for fixing and sealing the solar modules, enhancing the strength of the modules, prolonging the service life, and facilitating the transportation and installation. Fully-automatic processing equipment is highly efficient, precise cutting and accurate positioning. The design process takes into account the self-weight of the module, wind, snow and other active load factors, so that its mechanical strength is sufficient to support the long-term work of the module, and can meet the test of harsh environments.