In order to improve the efficiency of the double-sided LCC compensation wireless charging system, a parameter optimization method is proposed to realize the zero-voltage switching of the inverter in both constant current and constant voltage modes by optimizing the parameters of the compensation element. Firstly, the double-sided LCC compensation topology is modeled by Kirchhoff’s theorem, and the constant current and constant voltage output conditions independent of the load are analyzed under the condition of zero phase angle. Secondly, a dual-mode parameter collaborative optimization strategy is proposed: the disturbance coefficient is introduced to quantitatively analyze the influence trend of the parameter disturbance of the compensation element on the imaginary part of the equivalent input impedance of the system in the dual-mode, and the components that can make the equivalent impedance show weak inductance in the dual-mode are screened. Based on this screening result, the parameter optimization method of the system to achieve zero voltage switching in both constant current and constant voltage dual modes is given, so as to realize dual-mode ZVS. Finally, a simulation model of the double-sided LCC compensation wireless charging system and an experimental prototype with an input voltage of 15 V are built for verification. The results show that the system has a constant current and constant voltage output capability independent of the load. The optimized system inverter can achieve zero voltage switching in both modes. The maximum efficiency of the system can reach 91.31%, which is 1% ~ 1.1% higher than the efficiency of the traditional single-mode parameter optimization method, which verifies the effectiveness of the proposed parameter optimization method.