How often liver cancer intervention should be done is closely related to the mode of interventional treatment, the degree of lesion elimination and whether new lesions appear, which should be decided according to specific circumstances. Generally, post-surgical evaluation of liver cancer intervention is given 3-6 weeks after the first intervention, if the surgical result is good, the second intervention can be suspended; if the tumor does not shrink significantly or there are new lesions, the second intervention will be performed. The interval of liver cancer interventional treatment should not be too short, usually more than 3 weeks, because interventional treatment is an invasive and invasive operation, which has certain damage to human body, and the follow-up treatment plan should be decided according to the efficacy of the previous treatment and the patient’s tolerance ability. Usually, assessment of surgical effect is performed 3-6 weeks after the first hepatocellular carcinoma intervention, with the aid of laboratory tests such as blood routine, liver and kidney function, tumor markers, as well as CT and MRI examinations to observe whether the tumor has become smaller and whether there are new lesions. In addition, it is important to review on time after liver cancer interventional treatment to avoid delaying treatment.