The present invention discloses a non-intrusive fault identification device for low-voltage users. The non-intrusive fault identification device comprises a current transmitter unit, a multi-functional data collection unit, an industrial personal computer unit, a power system unit and a data transmission unit. The current transmitter unit is configured to convert user drop cable large-current signals to weak-voltage signals; and the multi-functional data collection unit is configured to collect voltage signals, transmit the voltage signals to an industrial personal computer mainboard program for data processing and the industrial personal computer unit completes real-time signal monitoring, fault waveform recording and display, fault type determination and data communication functions, wherein a communication function with a main station employs the GPRS technology to realize real-time monitoring of the main station. The non-intrusive fault identification device is concise in configuration, low in construction cost, easy to maintain and the like, can realize a short-circuit accident monitoring function, has obvious technical advantages and has a key emphasis in work about overcoming of short-circuit current detection and location technology problems under the non-intrusive fault identification.