The Dielectric Elastomer Generator (DEG) serves as an efficient means of converting mechanical energy into electrical energy. Due to its high energy density, fast response speed, and lightweight characteristics, the conversion means of mechanical energy into electrical energy has received widespread attention. It is a promising electromechanical conversion technology with great potential. To collect the electric energy of dielectric elastomer generator, a DEG-SPC circuit is designed by combining the self-priming circuit (SPC) with the DEG collection circuit. The circuit leverages the self-generation cycle of the Dielectric Elastomer Generator (DEG) under a low voltage source to gradually elevate the DEG voltage. This mechanism effectively eliminates the reliance on a high-voltage DC power supply. Employing a two-stage fourth-order Switched Capacitor Circuit (SCC), the system regulates the dielectric elastomer’s high-voltage, low-current, and low-power electrical energy. This regulation process facilitates the subsequent storage and utilization of energy. The designed circuit undergoes simulation and analysis using Matlab/Simulink platform, validating the feasibility and efficacy of the proposed approach.