SiC devices have advantages in high frequency and high temperature occasions. Applying SiC devices to wireless charging systems can effectively improve the efficiency of wireless charging systems. Firstly,the characteristics of SiC material and Si material are compared firstly. Based on this,a set of power supply device for wireless charging system based on SiC device is developed. The device consists of rectifier module and inverter module. The input terminal is connected to mains electricity. The rectifier module has a power factor correction function. Then,the design method of rectifier bridge,filter circuit,Boost circuit and switch tube control circuit in rectifier module is given. The design method of switch tube drive circuit and switch tube protection circuit in inverter module is also given in this paper. Finally,the experimental results verify the effectiveness and feasibility of the scheme. High power factor is achieved on the input side. The voltage oscillation of the inverter switch tube is suppressed. The peak efficiency of the experimental prototype is 98.2%.