There is no such word as “at most”. How long diffuse liver cancer patients can live should not be generalized, but should depend on the specific condition of patients, treatment methods, etc. Through active treatment, patients can effectively prolong the survival period or even be cured. Liver cancer is a kind of malignant tumor occurring in liver, which is divided into two categories: primary liver cancer and secondary liver cancer. Diffuse liver cancer is a kind of primary liver cancer, which is presented as a large number of small nodules in liver, which are not fused with each other, and surgical resection is more difficult, and the survival period is not more than 1 year in general. If diffuse liver cancer patients do not have distant metastasis, they can be treated by liver transplantation; if distant metastasis has already occurred, they can choose conservative treatments such as chemotherapy, targeting and intervention to prolong their survival. It is suggested that when patients are diagnosed with diffuse hepatocellular carcinoma, they should carry out treatment under the guidance of doctors in time, keep an optimistic mindset and actively cooperate with doctors.