The invention provides a novel single-stage isolation wireless quick charging system. The system is characterized in that the system comprises a full-bridge rectification circuit; the full-bridge rectification circuit converts alternating current into direct current after taking electricity from a power grid; the direct current is connected to a non-isolation type DC/DC conversion circuit; the direct current is subjected to voltage modulation by the DC/DC conversion circuit, the modulated direct current is connected to a wireless transmission stage; a load is charged by the wireless transmission stage; and the wireless transmission stage is only used for realizing physical isolation and voltage reduction. According to the novel single-stage isolated wireless fast charging system provided by the technical schemes of the invention, the non-modulation wireless transmission stage is specifically adopted to realize a high step-down ratio and an isolation function, and meanwhile, the DC/DC modulation stage is introduced, so that functions such as isolation, step-down, modulation functions of the system are realized. Experimental results show that the efficiency of the system can be remarkably improved.