A filling valve for filling liquid into a bottle is provided that comprises a nozzle having an outlet on its bottom end and a seat on its interior surface, a stem arranged inside the nozzle and having a plug provided on its outer periphery, a helical vane provided on the outer periphery of the stem for inducing a spiral flow, and a bevel with expanding diameter in the downward direction is provided at the bottom end of the stem. The filling valve is closed when the stem descends and the plug makes contact with the seat. The filling valve is opened when the stem ascends and the plug separates from the seat. The bevel is extended below the outlet when the plug is opened. The liquid revolved via the helical vane and ejected from the outlet is spread by the bevel toward a bottle finish or neck.