Abstract: A novel vehicle-mounted wireless charging system is disclosed, which includes a transmitter. The transmitter includes a full-bridge unit, a compensating unit, a transmitting unit and a selecting unit. The full-bridge unit consists of one or two full-bridge modules, the compensating unit consists of two or more compensating network modules, the transmitting unit consists of multiple transmitting coils, and the selecting unit is used for switching different coils. Two full-bridge modules, two compensating network modules and multiple transmitting coils form a first mode, different full-bridge modules are selected to charge different models of mobile phones by switching through the selecting unit; one full-bridge modules, two groups of compensating network modules and multiple transmitting coils form a second mode, different compensating network modules are selected to charge different models of mobile phones by switching through the selecting unit.