The manufacturing process of copper indium gallium selenide (CIGS) thin-film photovoltaic modules includes the following steps: loading molybdenum-coated substrates, laser marking, substrate cleaning, metal precursor layer deposition, selenium vapor deposition, in-line selenization treatment, back surface cleaning, buffer layer deposition, front electrode deposition, front electrode inspection, busbar laying pretreatment, busbar welding, lamination, and junction box installation. The manufacturing process of amorphous silicon-germanium triple-junction thin-film photovoltaic modules includes the following steps: conductive glass edge grinding, cleaning, laser treatment, deposition, cooling, magnetron sputtering, annealing, ultrasonic welding, layer pressing, junction box installation, and testing. The manufacturing process of cadmium telluride (CdTe) thin-film photovoltaic modules includes substrate pretreatment, CCS deposition, and PN junction formation. sparking, etching treatment, back electrode preparation, encapsulation, product testing, and other processes.