The invention relates to a wireless charging system for electric automobiles and a control method. The system comprises an electric energy input device, an electric energy rectifying device, an energy storage cell, a DC/AC module, at least one wireless power supply transmission module and multiple electric automobile receiving ends which are matched with the wireless power supply transmission modules, which are successively connected; the electric energy input device comprises commercial power, at least one group of wind generating set and at least one set of solar cell panel, which are connected in a parallel mode; each of the electric automobile receiving ends comprises a wireless power supply receiving module, an AC/DC module and an automobile battery, which are successively connected. Compared with the prior art, the system and method of the invention has increased efficiency and peak-load shifting function.