Electric test discharge residual charge alarm indicator

The utility model discloses an electrical test discharge residual charge alarm indicator comprising a sampling circuit, a voltage comparison alarm circuit and a power supply circuit which are connected in sequence. The sampling circuit is respectively connected with the discharging end and the grounding end of the discharging rod to form partial voltage and is used for collecting a discharging voltage signal of the discharging rod; the voltage comparison alarm circuit is connected between the sampling circuit and the power supply circuit and is used for comparing the discharge voltage acquired by the sampling circuit with a set value and giving an alarm when the discharge voltage is greater than the set value; the power supply control module is mainly used for adjusting the voltage of the power supply module, so that the power supply module provides stable working voltage, and the effects of voltage adjustment and voltage stabilization are achieved. The alarm indicator can realize monitoring and alarm functio