An airbag cushion for a driver and a folding method thereof. The method of folding an airbag cushion installed inside a cover bracket of a steering wheel includes folding a rear end portion of the airbag cushion at least once towards a bottom surface; folding a front end portion of the airbag cushion at least once towards an upper surface; inserting the folded rear and front portions of the airbag cushion into a space between the upper surface and the bottom surface of the airbag cushion; and folding at least a longitudinal end of the folded airbag cushion at least once. When the airbag cushion deploys, the rear portion of the airbag cushion unfolds towards the inside of the rim portion of the steering wheel and the front portion of the airbag cushion unfolds towards the outside of the rim portion.