The invention relates to an energy-saving, efficient and low-noise press hydraulic system. The system comprises an oil tank, a first oil suction filter, a first direct-acting overflow valve, a first pressure sensor, a three-position four-way electro-hydraulic reversing valve, a first one-way valve, a first two-position two-way electromagnetic ball valve, an external control one-way balance valve, a first throttling hole, a movable plate driving long-stroke hydraulic cylinder, a movable plate driving hydraulic cylinder, a second one-way valve, a first pressure gauge, an internal gear pump, an AC servo motor and a first coupling, a second pressure sensor, a second throttling hole, a second two-position two-way electromagnetic ball valve, a second oil suction filter, a three-phase asynchronous motor, a second coupler, a constant-pressure variable plunger pump, a second pressure gauge, an electromagnetic overflow valve, a third one-way valve, a three-position four-way electromagnetic reversing valve, a double one-way throttling valve, a two-way hydraulic lock, a second direct-acting overflow valve and a short-stroke pressurizing hydraulic cylinder. According to the system, the manufacturing difficulty is effectively reduced, the manufacturing cost is greatly reduced, the efficiency is high, the heat is little, and the noise is low.