A bank repair method for repairing a defect portion of a bank in a process of manufacturing an organic electroluminescence (EL) display device including a substrate, banks formed over the substrate, and light-emitting layers formed in concave spaces defined by the banks. The bank repair method includes: examining whether or not a bank having a defect portion is present; and when a bank having a defect portion is present, repairing the bank by applying a repair material containing a gas adsorbent to the defect portion and curing the repair material; and after curing the repair material, baking the repair material by irradiating the repair material with infrared laser light.