Swine fever and porcine pseudorabies virus bivalent subunit vaccine and preparation method thereof

The invention provides a swine fever and porcine pseudorabies virus bivalent subunit vaccine and a preparation method thereof. The effective components of the bivalent subunit vaccine are classical swine fever virus E2 protein, porcine pseudorabies virus gB protein and porcine pseudorabies virus gD protein. The preparation method of the bivalent subunit vaccine is simple, the swine fever virus E2 protein, the porcine pseudorabies virus gB protein and the porcine pseudorabies virus gD protein are high in yield, high in purity and strong in antigen immunity, the immune response of a body can be effectively activated, and the bivalent subunit vaccine has an ideal immune protection effect on swine fever and porcine pseudorabies. Compared with a monovalent vaccine, the artificial cost can be reduced, the number of vaccination times (double prevention by one injection) is reduced, the stress reaction of pigs caused by vaccine immunization is reduced, the protection effect is equivalent to that of the monovalent vac