High-voltage wellhead wire connector

The utility model relates to a high-voltage wellhead wire connector, which is used for an electrical heating oil production well of an oil pipe of an oil field. The high-voltage wellhead wire connector is composed of a protecting cover 1, a pressing and connecting pipe 2, a pressing cap 3, a copper core 4, an insulating and sealing body 5, a sealing rubber ring 6 and a main body 7. The utility model is characterized in that under the precondition that good insulation of a cable and a wellhead is ensured by the high-voltage wellhead wire connector, a squeezing sealing mode is changed into a double sealing mode that a screw seal is matched with a rubber ring seal. Thus the sealing intensity is enhanced and pressure actual measurement can reach 65 Mpa, and thus the phenomena of the leakage of oil, gas, and water, fire disaster initiation, etc. can be effectively prevented. The existing press sealing type cable sealer can be perfectly replaced, and the utility model can be popularized and applied in oil fields.