An improvement has been made on the design of a wireless fast charging plate of mobile phones based on magnetic resonance technology. The design mainly consists of two parts, transmitting terminal and receiving terminal, with the former adopting XKT-901 wireless transmitter chip to be in charge of the intelligent control of battery fast charging, and with the latter using the fast charging chip IP6505 to provide solutions for different types of charging protocols. Based on the analysis of the test data, the charging efficiency of the wireless charging board can be as high as 60%, with its power reaching 20 W, which shows that its performance is better than the mainstream mobile phone wireless charging equipment on the market.