Portable high-voltage cable alternating-current withstand voltage test insulating support

The utility model relates to a high-voltage cable test auxiliary tool, and especially relates to a portable high-voltage cable AC withstand voltage test insulation support. The utility model disclosesa portable high-voltage cable alternating-current withstand voltage test insulating support. Including a motherboard, auxiliary plates are rotationally connected to the two sides of the main plate; afixing rod is arranged on the main plate; lifting rods are arranged at the ends, away from the main plate, of the fixing rods. Connecting rods are arranged at the ends, away from the fixing rods, ofthe lifting rods. The top end of the connecting rod is provided with a V-shaped supporting block used for supporting a cable. A height adjusting device is arranged between the lifting rod and the fixed rod; the height adjusting device comprises a lifting hole formed in the fixing rod, the lifting rod is located in the lifting hole and is in sliding connection with the lifting hole, a driving motoris arranged on the bottom f