The E/H servo cartridge valve is adopted to control the system of 20MN Forging Hydraulic Press. Its characteristics ,such as short response time, high control accuracy and so on, are extremely fit for forging hydraulic press. As a result the high forging times and accuracy can be achieved. A new saving-energy fast forging press using accumulator is presented for the problem of power waste during forging process. The model of proportional cartridge and accumulator are found, then the mathematical model of the whole fast forging circuit is found and simulated, the results show that it performs perfect for the fast forging press by using accumulator. Finally, base on the fast forging press test with accumulator, the model validity and feasibility of this fast forging circuit are validated.