In the 21st century, wireless charging technology has developed rapidly, and realizing wireless charging for electric vehicles is a key focus of future charging work. Building upon previous research, this paper studies and designs a wireless charging circuit based on the principle of electromagnetic induction, which includes a transmitter and receiver, a bridge rectifier, and an RLC series resonant circuit. A set of feasible key parameters was analyzed, and some optimization schemes were proposed. The feasibility and safety of the circuit were verified through simulation software testing. The circuit was found to be relatively stable and applicable to charging most practical electric vehicles. This could provide a new solution for wireless charging of electric vehicles. It also has the potential to contribute to the efficient and convenient development of electric vehicle charging and is worthy of further research.