To provide a surface-treated steel sheet for a battery container, which is improved in the adhesion between a nickel-plated steel sheet and a resin coating formed on the nickel-plated steel sheet, and which prevents direct contact between a mold used for DI processing and the nickel-plated steel sheet by the coating covering the surface of the nickel-plated steel sheet, and thereby reduces the wear of the mold and can prolong the life of the mold.

A surface-treated steel sheet for a battery container is obtained by forming a resin coating film on a nickel-plated steel sheet subjected to an electrolytic degreasing treatment.