The overall frame or combined frame structure of the frame hydraulic press machine is all steel plate welding; four corners and eight sides right-angle guide rails are guided with high precision and good rigidity, and hydraulic preloading is adopted. The hydraulic system adopts a two-way cartridge integrated valve; the whole system works stably, reliably, with long service life, less leakage and fewer failure points. The electrical system is controlled by "PLC" programmable controller, and can be equipped with proportional voltage regulation, digital display of stroke, photoelectric protection device and mobile worktable (easy to replace molds) according to user requirements.