Radiofrequency technology has a wide range of applications in medical clinics. Needle electrode radiofrequency in the pain department, on the other hand, has formed a specialty-specific application. This is not only due to the pain physicians’ mastery of RF puncture techniques, but also because of their comprehension in medical practice. After the initial standard radiofrequency treatment of the trigeminal nerve (branches II and III) pain, in 2004 the needle electrode was developed to enter the responsible disc via the safety triangle to treat discogenic back pain and spinal nerve root irritation of bulging discs (a type of disc herniation), and then the target radiofrequency treatment of lumbar discs by piercing the working end of the needle electrode into the nucleus pulposus of the herniated disc was developed. Herniated disc method. The corresponding radiofrequency treatment of cervical discs was also developed. At the same time, radiofrequency thermocoagulation of spinal ganglia and spinal nerve roots (trunk) was also reported in domestic pain conferences. This is the first widespread application of radiofrequency technology in pain department. In 2007, the concept of pulsed radiofrequency was introduced into China, and pulsed radiofrequency treatment temperature of trigeminal hemimelia between 42℃ and 60℃ has been reported and practically applied, while the efficacy ranged from unclear effect to one treatment maintaining 1 to 6 years while not having facial numbness and sensation side effects as often as standard radiofrequency, and these treatment observations have been reported. Pulsed radiofrequency has not only been well administered in trigeminal neuralgia, but has provided new thinking in the radiofrequency treatment of more nerves such as the spinal nerve. Due to the larger disc bulges and herniations, and the more pronounced high signal zone (HIZ) in the black disc resulting in severe discogenic low back pain requiring an adequate range (volume) of RF thermal coagulation areas, bipolar water-cooled RF was introduced to the country and achieved good results within some specific regions. With this, in 2008, bipolar RF was discovered and rapidly promoted and applied, and all domestically sold needle electrodes RF were added to bipolar RF. Bipolar RF has different modes such as unipolar stimulation thermoregulation and bipolar simultaneous and separate stimulation thermoregulation, as well as dipolar mode. Dual-needle bipolar RF is inferior to bipolar water-cooled RF but significantly better than single-needle RF in the above-mentioned RF thermal coagulation volume index that requires sufficient range. In addition to almost all discogenic low back pain and cervical cervical spondylosis, bipolar radiofrequency has been used to treat painful spinal nerve impingement due to paravertebral tumors, sacroiliac joint pain, radiofrequency coagulation of large foramen ovale hemimelia ganglia, and to replace silver needles for the release of skeletal muscle attachment points and for the elimination of myofascial provocation points. Bipolar radiofrequency also greatly improves treatment success in cervicothoracolumbar sympathetic radiofrequency and spinal ganglion radiofrequency with pulsed radiofrequency treatment due to a good solution to the normal position variation of spinal nerves. This has yielded better to very good results in relieving cervical (intervertebral) origin, thoracic (intervertebral) origin and lumbar (intervertebral) origin pain, herpes zoster neuralgia in related segments, tumor pain in the spinal nerve region, ankylosing spondylitis pain and pelvic pain. Neuralgia arising from the second branch of the trigeminal nerve collecting sensation in the medial cheek region is not easily reached by a straight needle during oval foramen puncture. Some pain physicians have found new routes to reach the second branch via the orbit and the near-root area of the second branch via the foramen ovale after an in-depth study of the local anatomy, solving the problem of difficulty in treating the second branch of trigeminal neuralgia with radiofrequency. Following the revelation of spinal nerve radiofrequency for the treatment of herpes zoster neuralgia in the trunk, the hemianopsia radiofrequency plus injection technique for the treatment of herpes zoster neuralgia in the head and face was also applied and proved to be often miraculous. The pain of the first branch of the trigeminal nerve also changed from a contraindication to RF treatment to a conditional indication for RF treatment, and herpes zoster of the head and face, which is prevalent in the first branch, thus benefited to become a relatively curable disease. This should be a landmark event in the history of pain management – one of the major contraindications to RF treatment of trigeminal neuralgia is now history. What other problems can radiofrequency with needle electrodes solve in the pain department? Physicians in the pain department at Gulou Hospital use electrodes to stimulate the distal spinal nerves in spinal cord injury paralysis to relieve spinal cord injury pain and improve perception, albeit minimally but certainly. Radiofrequency of the meningeal branch nerves and radiofrequency of the posterior branch of the cervical spinal nerves using radiofrequency of the cervical intervertebral disc in conjunction with responsible intramuscular injections of botulinum toxin are used to prevent and significantly reduce headaches in patients with chronic migraine and chronic daily headache, as prompted by cranial and cervical MRI. Factors such as TNF-α play an important role in the mechanism of synovial destruction in the osteoarthritis of strong spondylitis, and biologic agents such as TNF-α inhibitors (e.g., etanercept) have been developed as new therapeutic targets for the treatment of strong spondylitis. However, they are expensive. Annual costs reach nearly $100,000. The pain physicians considered whether the immune characteristics of the synovial membrane, which is sensitive to factors such as TNF-α, could be changed by radiofrequency action in patients with strong spondylitis, thus avoiding the continuous attack of factors such as TNF-α, so that the patients’ spinal joints and sacroiliac joints would no longer have pain nor bamboo-like changes and thus avoiding ankylosing changes in the spine. The efficacy of the treatment has been confirmed in more than ten patients for up to five years.