Switch current stress of the traditional resonant-type bi-directional full bridge DC/DC converter will surge when the energy pushes reversely. A new kind of inductor–capacitor–inductor(LCL) composite resonant-type bi-directional full bridge DC/DC converter is proposed, which ensures that the current stresses of switches always keep low. The working principle of the resonant converter is elaborated. The AC impedance model of the converter is established, and the method of parameter design is given. Furthermore, the output control of the converter is realized through energy injection and free oscillation control strategy. The experimental result shows that the proposed control strategy is feasible.