Due to their large strain capability, dielectric elastomers are promising materials forapplication as transducers in cameras, robots, valves, pumps, energy harvesters, and soon. The dielectric elastomer transducers are based on the deformation of a softpolymer membrane contracting in thickness and expanding in area, induced by theapplication of a voltage across the two compliant electrodes coated on both sides of themembrane. This paper focuses on the static large deformation analysis of a dielectricelastomer membrane–spring system. The system is constructed from attaching a diskin the middle of a circular dielectric membrane and then connecting the diskwith a spring. This configuration can be potentially used as a key part in valves.The basic governing equations describing the large out-of-plane deformations areformulated, and the obtained equations are solved numerically. The relations relatedto the displacement of the disk, the spring force, the applied voltage, and theparameters of spring including stiffness and initial length are illustrated. Theresults show that the anticipated displacement of the disk can be controlled byadjusting either or both of the parameters of the spring and the applied voltage.In addition, the parameters of the spring, that is, the stiffness and the initiallength, play an important role in the performance of the membrane–spring system.