Preparation method of lead-acid storage battery negative plate

The invention discloses a preparation method of a lead-acid storage battery negative plate. The preparation method comprises the following steps: (1) weighting lead powder, a carbon source, a zirconium source, barium sulfate, lignin, fibers, dilute sulphuric acid and distilled water which serve as raw materials in a mass ratio of 25:(0.1-0.3):(0.05-0.4):(0.1-0.25):(0.05-0.25):(0.005-0.02):(3-5):(4-7) for standby application; (2) preparing lead plaster; (3) plating; (4) forming. The preparation method has the advantages that a right amount of zirconium compound is added to a negative plate, so that the discharge capacity can be improved by 3-5%, meanwhile, the hydrogen evolution electric potential is remarkably negatively shifted, so that hydrogen is difficult to separate out, and the consumption of acid in a cyclic process is effectively reduced.