【Abstract】 Objective To evaluate the effect of preoperative information on pain and anxiety in patients undergoing radiofrequency ablation. Methods 80 patients were divided into control group and experiment group. Numeric Pain Rating Scale (NPRS) and Hospital Anxiety and Depression Scale (HADS) were used to assess the pain and anxiety of patients. Results Study revealed that the NPRS scores of experiment group was lower than that of control group at 30 min and 60min during radiofrequency ablation and immediately after radiofrequency ablation (P<00001). The experiment group consumed 1128±372mg analgesic drugs, which was less than that of control group (1534±316mg) (P<00001). The HADS of control group and experiment group were 824±351 and 672±216 (P=00223). The experiment group consumed less anxiolytic drugs than control group (P<00001). Conclusion Preoperative information can improve patient satisfaction.