The wireless charging platform is designed based on the principle of electromagnetic analyze and research the wireless charging technology for Lithium-ion batteries. By measuring circuit induction to of the PWM drive signal, the transmitting circuit and receiving circuit of energy, Lithium-ion battery charging time and charging voltage, the measured waveform and the data show that the actual wireless charging platform meets design requirements. It provides a wireless power technology example for application of design of wireless charging platform in portable electronics products.