The invention discloses a bidirectional energy active injection launching device for wireless energy transmission. During the operation of a system, the whole device can be divided into three main working modes: energy shaping, energy injection and free resonance, wherein the energy shaping uses inductance for energy storage, and obtains a tunable current source, and power can be easily adjusted;the energy injection uses a bidirectional injection mode, two times of energy injection is conducted in one cycle, and energy conversion rate is improved; the free resonance of a launching end and theenergy shaping on the front end is independent from each other, so that the resonance frequency of the resonance process in the whole cycle is pulled by equivalent parameters of a transmitting end and a receiving end, which is adaptive resonance, the resonant frequency is several times as strong as the switching frequency, high frequency variable flow is achieved under the low switching frequency, switching tubes can achieve zero voltage turn-on and zero voltage turn-off under all frequencies, and switching losses are reduced.