A method for bending an inflatable boat bottom, and an inflatable boat bottom. The method comprises: a first step of cutting a piece of cloth; a second step of lockstitching; a third step of performing an airtight operation in a hole area (3); a fourth step of performing an airtight operation on the periphery of a wire-drawn material and placing an air nozzle (5); and a fifth step of bending and forming, so that an entire inflatable boat bottom (1) is airtight. In this bending method, the wire-drawn material of the boat bottom is lockstitched, so that the boat bottom has a deformable structure, and the boat bottom is a single air bag and is convenient for inflation.