A 750KV shunt reactor high-voltage outlet structure is disclosed, which includes an elevating seat, L-shaped fixed blocks are fixedly installed in positions close to the two sides at the bottom of theelevating seat, the L-shaped fixed blocks are provided with a plurality of fixed holes, a plurality of supporting blocks are connected with the middle part of the elevating seat, and a plurality of wire clips are fixedly installed on the surface of the elevating seat, the inside of the wire clip is provided with a threaded groove, the inside of the threaded groove is threadably connected with a threaded pin, the end of the threaded pin is provided with a cushion block, and the top of the elevating seat is connected with an insulating paper cylinder through a fastener. The invention disclosesa 750KV shunt reactor high-voltage outlet structure, which is provided with the insulated paper cylinder, an insulated voltage-sharing ball, the elevating seat, the L-shaped fixed blocks and the support blocks, can ensure the electrical strength of the 750kV outlet line, ensure that the outlet line structure and the sleeve are installed on the oil tank body, improve the seismic resistance of the 750kV shunt reactor, and bring better application prospects.