The invention discloses a method for realizing a rapid forging function of a free hydraulic forging press, and the method is applied to the forging industry. The method for realizing the rapid forging function of the free hydraulic forging press is used for realizing the rapid forging of a novel hydraulic press and provided under an oil control water control system; universal parts of the hydraulic press are adopted to control the normally open high-pressure water in a return cylinder of the hydraulic press, thereby realizing the requirement for a rapid forging function; the universal parts of the hydraulic press are adopted to control a middle working cylinder to work by boosting, and cylinders at two sides do not take part in working by boosting, thereby realizing the requirement for the rapid forging function; the requirement for the rapid forging function is realized through a hydraulic control system of the hydraulic press, and the important part is a main distributor which is used for distributing high-pressure water from a high-pressure pump station to a main working cylinder and the return cylinder, so that the works of the hydraulic press are coordinated and consistent. The device can realize the rapid forging function of the hydraulic press to the oil control water control system, adopts elements which are all universal parts of the hydraulic press, has no need of changing control programs, and is only additionally provided with one rapid forging and normal forging switching button, thereby reducing the equipment cost, increasing the times of forging, lowering the working intensity of operators and reducing the power consumption.