The liver function of liver cancer patients is as follows: 1. Early stage liver cancer liver function is not affected or mildly abnormal, which is manifested as mild elevation of glutamic aminotransferase and glutamic oxalacetic aminotransferase, and mild elevation of bilirubin in some patients; 2. Late stage liver cancer liver function is moderately or severely abnormal, liver cancer cells encroach on liver, liver synthesis and secretion functions are affected, which is manifested as moderate to severe elevation of aminotransferase, mild, moderate or severe elevation of bilirubin, decrease of albumin, and decrease of cholinesterase when liver cancer cells invade blood vessels.