The present disclosure provides a method for quantifying a vaccine. The method includes the steps of: 1) providing a plurality of standard mixtures, each of the standard mixtures having a standard antigen and an aluminum based adjuvant； 2) mixing a stabilizing solution with the vaccine and each of the standard mixtures； 3) determining dosages of the standard antigens in the standard mixtures to establish a standard curve； and 4) determining a dosage of a target antigen in the vaccine according to the standard curve.
