Multi-function power digital signal inspection device

The invention provides a multi-function power digital signal inspection device which comprises a digital power source, a pulse unit, a human-computer interaction unit, a display unit and a power supply unit, wherein the digital power source is used for generating and sending data frames in line with the IEC61850-9-1/2LE protocol, and the pulse unit is used for receiving high-frequency signal pulses metered by an inspected meter, converting pulse signals to corresponding power information and comparing the power information with signal source power or power acquired by a standard meter; the display unit is used for displaying input/output signals and information in real time, the human-computer interaction unit is used for function switching, and the power supply unit is used for supplying power for the whole multi-function power digital signal inspection device to realize the functions of sending and outputting digital signals, to check the calculation of the standard value of an external tested signal source and to inspect an external digital energy meter.