Split type radiofrequency ablation electrode needle

A split type radiofrequency ablation electrode needle comprises a handle, a needle tube disposed on the handle, an infusion tube connected with the needle tube and an RF power line connected with the needle tube. The infusion tube is connected with a liquid syringe, and the RF power line is connected with a radiofrequency generator. The infusion tube is connected with a liquid syringe through an extension tube of the liquid syringe, and a quick release pipeline non-return valve is disposed between the liquid tube and the extension tube of the liquid syringe. The RF power line is connected with the radio frequency generator through an extension line of an electrical cable, and a quick release electrical joint is disposed between the RF power line and the extension line of an electrical cable. A split type structure is adopted by the radiofrequency ablation electrode needle, a radio frequency needle main body and an extension tube joint are separated, a doctor can use the radiofrequency ablation electrode needle in different operations, the optimum positioning effect of puncture can be achieved.