The invention discloses a novel return time-adjustable hydraulic wedge system. The system comprises a base, a power cylinder and an energy storage cylinder mounted on two sides of the upper end of thebase, and a working cylinder connected with the base through a pipe; a plunger rod of the power cylinder is perpendicular or inclined to a piston ejector rod of the working cylinder; a channel is formed in the base; the power cylinder, the energy storage cylinder and the pipe all communicate with the channel; the base is provided with an electromagnetic valve; a valve element of the electromagnetic valve is arranged at the middle part of the channel, and controls on and off of the channel; the channel is divided into a first branch channel and a second branch channel by the valve element; thefirst branch channel communicates with the power cylinder; and the second branch channel communicates with the energy storage cylinder and the pipe. The system is simple in structure, small in size and free of exposed friction pair, overcomes the defect of early wear of a mechanical wedge, prolongs the mold life, can finish punching and shaping by any angle without being limited by angles, adoptshydraulic transmission to realize silent punching, and can adjust the return time to achieve the pressure-maintenance shaping purpose.