If cancer cells are found in other parts of liver after liver cancer resection, it is a manifestation of metastasis and spread of cancer cells, and immunotherapy, radiotherapy and targeted therapy can be chosen according to the progress of disease. 1. Immunotherapy: mainly for advanced liver cancer patients, drugs such as sorafenib and regorafenib can be used to inhibit cancer cells. 2. Radiotherapy: if liver cancer patients still have residual cancer after surgery, radiotherapy should be carried out as early as possible. If necessary, chemotherapy can be combined with chemotherapy to inhibit the progress of cancer cells, and commonly used chemotherapy drugs include epothilone, adriamycin, fluorouracil and so on. 3. Targeted therapy: If liver cancer has metastasized to other parts and is determined to be in advanced stage, oral targeted drugs can be taken to inhibit the spread of cancer cells, such as lenvatinib. If liver cancer metastasizes and spreads to other parts after resection, early diagnosis and treatment can prolong the survival rate and improve the quality of life of patients. During the treatment period, if there is any doubt, one should consult the doctor in time, and should not take medication without authorization, so as to avoid delaying the condition.