The invention provides a fault indicator comprehensive testing system. The fault indicator comprehensive testing system comprises an electric quantity acquisition unit, a core control unit PLC, a touch screen, a power amplifier, a three-phase output device and a single-phase output device. The fault indicator comprehensive testing system and a fault indicator comprehensive testing method are used for simulating various kinds of operational states of an actual 10kV power distribution line such as waveforms of short-circuit failure, reclosing, manual switching large load and non-faulty line reclosing, achieve millisecond level abrupt change of primary current and voltage, are applied to fault indicator equipment grading, fault analysis, sampling inspection on arrival of goods, feasibility evaluation, bid invitation detection, grid-access sampling test and the like, have the intensive, automatic and whole-process advantages, reduce the phenomena that the fault indicator operated in the grid is low in action accuracy and is prone to generate missing alarm and false alarm, and increase the grid-access qualified rate.