The invention discloses a lead-acid storage battery positive electrode plate curing process for an electric automobile, and belongs to the technical field of lead-acid storage battery production. Thecuring process comprises the following stages of the first stage: directly putting a raw electrode plate into a curing chamber with the temperature being 75 DEG C; maintaining the states for 1.5 to 2.5h; raising the temperature to 82 DEG C at the speed being 0.8 to 1.2 DEG C/h; then, lowering the temperature to 65 DEG C at the speed of 15 to 20 DEG C; maintaining the state for 4 to 6h; then, lowering the temperature to 59 DEG C for the time of 5 to 6h, wherein the humidity in at stage is greater than or equal to 99 percent; the second stage: raising the temperature to 60 to 62 DEG C; performing gradient humidity regulation to 80 percent, wherein the humidity reduction at each time is 3 to 5 percent, and the time is 1 to 5h; then, performing gradient temperature lowering to 55 DEG C; lowering the humidity to 65 percent; lowering the temperature by 2 to 5 DEG C in each time; lowering the humidity by 5 to 10 percent for the time of 1 to 2h. The curing process provided by the invention better conforms to the mass production technical conditions; the performance of the prepared electrode plate is better; the electrochemical performance of the battery can be favorably improved.