The invention discloses a battery manufacturing method and a battery. The method comprises a pole lug collecting handle manufacturing step and a pole lug welding step. The battery is provided with at least one pole lug. The pole lug welding step is as follows: welding the pole lug collecting handle at the inner side of a cover body, connecting one end of the pole lug to the pole piece of the battery, and welding the other end of the pole lug on the pole lug collecting handle. The mode provided by the invention is simple and convenient in operation, realizes the purpose of stably welding a plurality of pole lugs, improves the performance of the battery, and is especially suitable for a power battery with large capacity and high power.