Abstract: Neuropathic pain (NP) is a medical problem that has been bothering human beings and seriously affects people's quality of life. Although great progress has been made in the study of NP in recent years, there are still many patients who are ineffective to the existing treatments. At present, drug therapy is still the main method to relieve pain, however, adverse drug reactions has hindered the curative effects of drugs. It is extremely urgent to find new drug targets and reduce the adverse effects of existing drugs. This review will mainly describe the current situation and pathogenesis of neuropathic pain, effectiveness and limitations of existing drugs for treating neuropathic pain, and the current status of drug discovery.