The invention relates to the technical field of electrical equipment and specifically an indoor high-voltage presence indication device voltage indicator comprising a housing made of plastic materialand a display panel, wherein a three phase current indicating lamp and a locking work indicating lamp are arranged on the display panel; a rear side of the housing is provided with a protrusion, a wiring terminal is arranged in the protrusion, and a circuit and a sensor are arranged in the housing. The indoor high-voltage presence indication device voltage indicator is suitable for indoor high voltage electrical equipment which is 50 HZ in rated frequency and 40.5 KV or less in rated voltage; a loop circuit electrification state can be reflected, and cooperation with an electromagnetic lock can be realized; a switching handle, a valve and the like can be locked in a forced manner. Live-line display and forced pin locking are controlled via the same high voltage signal; circuit systems aremutually independent and do not interfere with each other; as long as a high voltage loop circuit is electrified, an electromagnetic pin is still in a locked state even if faults occur in the displaycircuit and a pin locking circuit at the same time, maloperation can be prevented, and workers can be prevented from entering an electrified interval by mistake.