The invention discloses a method for detecting the in-vitro activity of recombined human
interleukin-12 by using a
cell with an
interleukin-12
receptor and application. The method comprises the following steps of (1) taking out the frozen
cell with the
interleukin-12
receptor from a
liquid nitrogen tank, and performing
recovery activation cultivation till the logarithm growth period is reached; (2) inducing the
cell with the interleukin-12
receptor through a recombined human interleukin-12 standard substance under different concentrations to generate
gamma interferon to obtain the concentration value ED50s of the recombined human interleukin-12 standard substances; (3) inducing the cell with the interleukin-12 receptor through a recombined human interleukin-12
protein to be detected under different concentrations to generate the
gamma interferon to obtain a concentration value ED50r of the recombined human interleukin-12
protein to be detected; and (4) obtaining the in-vitro activity Pr of the recombined human interleukin-12
protein to be detected according to a formula Pr=Ps*ED50s / ED50r.