The utility model discloses a high-voltage potential indicator, which is characterized in that the high-voltage potential indicator comprises a conductive connecting piece, a conductive piece, a protective cover, an electricity testing device and a pin electrode, the conduction piece is used for sequentially connecting the connecting piece, the protective cover, the electricity testing device andthe pin electrode from top to bottom so as to realize electric conduction; the protective cover is used for being arranged between the connecting piece and the electricity testing device, and the longitudinal projection surface of the protective cover covers the longitudinal projection surface of the electricity testing device; the electricity testing device is used for testing and displaying theelectricity of the high-voltage conductor; and one end of the pin electrode is connected with the conducting piece penetrating through the electricity testing device, and the other end of the pin electrode is contacted with the atmosphere to form a current loop by utilizing corona discharge of the pin electrode. According to the utility model, through the arrangement of the protective cover, rainand snow are shielded for the electricity testing device, and electricity testing work under severe conditions of heavy rain and heavy snow is facilitated.