Immunoenhancer for chicken vaccine

The invention discloses an immunoenhancer for a chicken vaccine; and the immunoenhancer, which is a cell factor compound of chicken genetic engineering, is prepared through compatibility and combination of a recombinant chicken interferon alpha, a recombinant chicken interferon [gamma] and a recombinant chicken IL-2. The immunoenhancer for the chicken vaccine disclosed by the invention, when used, is added to the vaccine by an addition amount of 1-30% of the vaccine; the immunoenhancer is capable of effectively improving cellular immune response and body liquid cellular immune response levels of the vaccine; and the application scope of the immunoenhancer includes chicken inactivated vaccines, genetic engineering vaccines and attenuated live vaccines.