The establishment of the energy internet has become a general trend as development of distributed energy technology, and energy router has also become a hotspot about relevant research of the core components. Therefore, the Bidirectional Isolated DC-DC Converter (BIDC) is widely used in AC-DC-AC energy router systems, because that can flexibly support DC bus voltage ratio, and achieve bidirectional power flow. This paper proposes a reconfiguration on bidirectional multi-level LCL-T resonant converter based on vector analysis, in which NPC multi-level structure with flying capacitor is introduced to form a novel active bridge, and a coupling transformer is specially added into the active bridge for ability of multi-level voltage output under hybrid modulation. Besides, an LCL-T two port vector analysis is adopted to elaborate bidirectional power flow which can generate some reactive power to realize the Zero Voltage Switching (ZVS) on active bridges to improve the efficiency of the converter. Meanwhile, due to the symmetry of LCL-T structure, the difficulty of bidirectional operation analysis of the power flow is reduced. Finally, a simulation experiment is designed with a rated voltage of 200 V on front and rear input sources and a rated power of 450 W for bidirectional flow. The feasibility of the proposed converter is verified.