The invention relates to a method for producing porcine parvovirus infection vaccines by adopting a full suspension technology. For the ST cell full suspension culture process provided by the invention, the key technology is as follows: after successful full suspension domestication of ST cells, the large-scale culture of porcine parvovirus infection viruses can be carried out in a bioreactor; the method has the advantages that the operation is simple, the controllability is strong, the culture efficiency and automation degree are high, a carrier is not needed, etc., and thus a novel path is provided for the large-scale production of cells or vaccines.