3D printed silicon carbide products can be designed differently according to terminal needs, and then made by 3D printing molding, sintering, and finishing. They have the characteristics of high strength, high temperature resistance, corrosion resistance, and low thermal expansion coefficient, which greatly reduces the risks of fragmentation, deformation and pollution during use. They also have the advantages of integrated (no splicing defects), large loading, high purity, and no pickling. They ensure deposition rate and cost control with a longer service life. They are widely used in the photovoltaic field.