The specific survival time of terminal cancer with blurred consciousness can not be generalized, usually within two weeks. Patients with advanced cancer with fuzzy consciousness are already close to the terminal stage, the survival period is generally shorter, the patients have already appeared serious malignant disease, can occur pulmonary encephalopathy, hepatic encephalopathy, brain metastasis and other problems, there will also be multiple organ failure, in most cases the survival period is within two weeks. However, when there is blurring of consciousness and the patient’s indicators are close to normal, there may be brain metastasis or meningeal metastasis and other appearances of impaired consciousness, and this situation requires a cranial examination. Patients with blurred consciousness in the advanced stage of cancer are recommended to consult the oncology department of regular hospitals.