The utility model provides an insulator chain connection structure. Insulator chain connection structure has exert pressure end and a pressurized end, and insulator chain connection structure is including supplementary protection portion, supplementary protection portion and insulator chain's spliced pole cooperation, and the surface butt of exert pressure end and spliced pole, the pressurized end is restricted with insulating circulation and is connected, and under the exogenic action, the pressurized end support receives external force and with external force through assisting protection portion to transmit to insulator chain. The technical scheme of the utility model can solve prior art's the lower problem of insulator chain work efficiency in the transmittance process.