Abstract:After investigating a large number of photovoltaic power plants, it can be seen that the crystal silicon components were prone to problems such as black core, black spot, black mass, hidden crack and crack. Two main reasons for common problems of components were the poor quality of raw materials and the problems of production preparation process,and non-standard operation of construction personnel in construction installation. In order to ensure the quality of crystalline silicon components and the stable operation of power station, the quality of solar crystalline silicon components should be scientifically managed from the aspects of production, manufacturing and construction. Not only the production and manufacturing process of components should be strictly controlled, but also the components handover, components storage, construction and installation of power station construction should be strictly implemented in accordance with the specifications.