Producing method of human serum albumin

The invention discloses a producing method of human serum albumin. The producing method has the main technical scheme that the producing method of the human serum albumin mainly comprises the steps of merging and fusion of plasma, manufacturing and centrifugation of first ingredients, manufacturing and filter pressing of second and third ingredients, manufacturing and filter pressing of fourth ingredients, manufacturing and filter pressing of fifth ingredients, precipitate dissolution and filtering of the fifth ingredients, ultrafiltration and dialysis concentration, preparation, pasteurization inactivation, sterilization filling, incubation and inspection, wherein in the ultrafiltration and dialysis concentration step, the pH value is adjusted to 5.5 to 6.0, and the sodium chloride concentration is adjusted to 1.5 to 2.0 percent. The invention aims at providing the producing method of the human serum albumin with the advantages of low aluminum ion content and high product quality.