The invention discloses a wireless bidirectional charging and discharging system for an electric vehicle, which includes a first circuit and a second circuit; the first circuit includes a bidirectional AC-DC circuit, a first bridge circuit, a first coupling mechanism and a first control circuit, and the first circuit includes a bidirectional AC-DC circuit, a first bridge circuit, a first coupling mechanism and a first control circuit. The second circuit includes a second coupling mechanism, an active compensation circuit, a second bridge circuit, a bidirectional DC-DC circuit and a second control circuit. The first circuit and the second circuit establish a wireless connection and transmit vehicle information and instructions before charging and discharging, and then transmit charging information and shutdown instructions through the wireless connection after charging and discharging, avoiding real-time wireless connection during energy transmission. Transmit control information; no matter the system is working in charging or discharging mode, after the transmitter is started, only the receiver needs to perform closed-loop regulation according to the instructions to realize the two-way transmission of grid energy and battery energy. The invention does not adopt a receiving end regulation mode, and has the advantages of simple control, strong anti-offset regulation ability, wide voltage adaptability range, high transmission efficiency and the like.