The high recurrence rate of primary liver cancer after treatment is a difficult problem for doctors and patients. In order to further reduce the possibility of recurrence of liver cancer patients, the Interventional Department of Shanghai (affiliated with Fudan University) Public Health Clinical Center, namely Zhongshan Hospital South Hospital, has performed the dual interventional combination procedure of radiofrequency ablation + transhepatic artery chemoembolization (TACE) for liver cancer patients after strict screening since 2012, and has accumulated rich clinical experience. Radiofrequency ablation is a procedure in which a pencil-thin radiofrequency needle is punctured into the cancer lesion under the guidance of B-ultrasound or CT, and the normal tissues within 0.5-1.0 cm around the tumor are heated to a certain temperature together with the tumor lesion, thus completely inactivating the tumor; at the same time, the combined application of transhepatic artery chemoembolization can avoid missing microscopic lesions that cannot be detected by CT, MRI and other preoperative images. Such micro lesions may be undetectable by the surgeon’s naked eye and hand even under the direct vision of open abdomen during surgery, which can effectively reduce the chance of recurrence after surgery. Radiofrequency is like a sniper rifle that can precisely and fatally destroy clear tumors in one shot, and TACE is equivalent to a machine gun that can destroy other microscopic lesions that may exist and achieve the purpose of complete inactivation of intrahepatic tumor lesions. For strictly screened small liver cancer cases, it can achieve the same treatment effect as surgical resection. Compared with surgical operation, dual interventional surgery has the advantages of less trauma, less complications, faster recovery, lower cost and less pain, etc. You can get out of bed for normal activities the next day after surgery and be discharged from hospital in 3 days. Dual interventional surgery may seem simple, but it is actually quite difficult for the surgeon performing the procedure. In addition to the need to have the imaging knowledge of MRI, CT and B-ultrasound at the same time to accurately determine the location of the lesion, and to ensure that the radiofrequency electrode needle is accurately delivered to the center of the lesion during the puncture, only by doing the above two things can the success of the procedure be guaranteed. To perform dual interventional procedures, the surgeon must be proficient in both DSA intervention and ultrasound intervention, one without the other.