The invention relates to the technical field of hydraulic machines, and in particular relates to an electric-hydraulic proportion regulation and control system for a hydraulic machine. The system adopts a proportional velocity regulating valve to control the oil inlet amount of a main cylinder when a sliding block descends, thereby achieving the aim of controlling the descending velocity of a bad block; meanwhile, the system adopts a proportional pressure-reducing valve to control the oil pressure at the oil inlet of a top cylinder, thereby controlling a blank holder force provided by a blank holder; the system sliding block displacement information is acquired by a grating ruler displacement sensor and then fed back to a PC through an A/D converter; meanwhile, the oil inlet flow at the main cylinder is monitored through a flow sensor, and the flow is fed back to the PC through the A/C converter; the blank holder force information provided by the system blank holder is acquired through a top cylinder pressure sensor and then fed back to the PC through the A/D converter; meanwhile, a main cylinder pressure sensor monitors the pressure at the oil inlet of the top cylinder, and the pressure is fed back to the PC through the A/D converter; and a pressure control loop and a top cylinder pressure sensor control loop form a closed-loop control system of the blank holder force.