To provide a manufacturing method of a casting lattice for a storage battery wherein a hot point is eliminated and a corrosion resistance of the lattice is made to be improved, further a life performance of a lead acid battery to use this lattice is improved, and an output characteristic reduction of this lead acid battery is made less.

In the manufacturing method of the casting lattice for the storage battery wherein a mold provided with a concave part in a lattice state is used at least at one abutting face in a pair of molds, and wherein a first process to close the pair molds, a second process to inject a molten lead and a molten lead alloy into the mold, a third process in which the injected molten lead or molten lead alloy is made solidified and the lattice is formed, and a fourth process in which the pair of molds is opened and the lattice is taken out from the mold are provided, this has a process to compress one part of the lattice formed between the third process and the fourth process.