The invention especially relates to a method for producing a live vaccine against pseudorabies in swine from a continuous cell line, belonging to the technical field of biological products for livestock. The continuous cell line used in the invention is Vero cells. The method comprises the following steps: passage and culture of cells for vaccine preparation; propagation of virus seeds of the cells; propagation of virus liquid used for vaccine preparation; and vaccine preparation, split charging and freeze-drying. Porcine pseudorabies viruses obtained by using the method re high in content and titer; and the eventually prepared vaccine has high stability and long shelf life.