Missort identification system for judging abnormal power connection

The utility model relates to a missort identification system for judging abnormal power connection. The missort identification system comprises a data terminal for reading the load of a user electric meter and a test terminal for judging abnormal user access and a user-meter relationship, the data terminal comprises a data terminal communication module and a reading module used for reading the load of a user ammeter. The test terminal comprises a test terminal communication module, a load module used for generating a load, a detection module and an MCU processor. The test terminal communication module communicates with the data terminal communication module to obtain data of the reading module; the load module is electrically connected to the user three-plug socket; the detection module is connected to the load module to detect zero-fire voltage and fire-ground voltage of a user; and the MCU processor is connected with the detection module and the test terminal communication module to judge the power-on abnor