The invention discloses a plug-and-play energy interconnection system, which comprises a master station management platform system, a plurality of area measurement systems connected in parallel and aplurality of plug-and-play terminal devices, wherein the area measurement systems are in communication connection with a power grid separately; the terminal devices are connected with the area measurement systems in series; the master station management platform system is in communication connection with the area measurement systems and receives switch measurement information of the power grid; and the master station management platform system is in communication connection with the terminal devices, receives information of the terminal devices and transmits a terminal device control command to the terminal devices. The plug-and-play energy interconnection system supports access of various distributed devices and electric vehicles, also supports communication of various electricity information acquisition terminals, has the functions of data summarization and transfer and relatively high expandability and supports connection of various devices, the reliability of power supply service of the system is effectively improved, two-way energy interaction can be achieved, the functions of cutting off a circuit and connecting the circuit can be completed, and the functions of identifying the devices and uploading and issuing orders can also be achieved.