Glutaminase and alanine aminotransferase are both produced by liver cells. Glutaminase to alanine ratio is the ratio of alanine aminotransferase to alanine aminotransferase, and this indicator is mainly used to evaluate liver function. When there is an abnormality in the ratio of AST and ALT, liver cell destruction, hepatitis, cirrhosis and other liver injuries are mainly considered, and the degree of liver cell destruction cannot be evaluated. Generally, the degree of liver cell damage is judged by the ratio of the two, and when the ratio is higher, the heavier destruction of liver cells is mainly considered, while if the ratio is lower, the only mild destruction of liver cells is mainly considered. In addition, in order to evaluate liver function, it is necessary to combine bilirubin, alkaline phosphatase, and imaging tests to evaluate liver function, and to pay attention to the trend of its change. Patients should seek prompt medical attention and follow the doctor’s instructions for examination and treatment.