Ultrasound is abnormal in both the decompensated and compensated phases of cirrhosis, but for the early stages of cirrhosis the abnormality may not be visible. Cirrhosis is a state of pathological change in which there is massive necrosis of hepatocytes, fibrotic proliferation of liver tissue, and pseudo lobar formation. The etiology is mostly alcoholic, viral, and biliary. According to the pathological characteristics can be divided into macronodular, micronodular and mixed size nodular, according to the development of disease changes can be divided into compensatory and decompensatory period. Pathological changes of cirrhosis are characterized by liver volume reduction, weight loss hardness increase, thickening of the peritoneum, nodular particles can be seen on the surface, and so on. Cirrhosis color ultrasound examination, different stages of disease development, its performance is different, compensated cirrhosis color ultrasound can be seen on the surface of the liver unevenness, density enhancement, the liver edge becomes blunt, venous blood vessels uneven thickness, portal blood flow deceleration or reflux and other phenomena. The color ultrasound of decompensated cirrhosis can show that the volume of the liver is obviously reduced, the trunk of the portal vein can also be obviously widened, and the spleen is obviously enlarged. Normal ultrasound does not necessarily exclude cirrhosis. In early cirrhosis, abnormalities may not be visible on ultrasound. The diagnosis of cirrhosis needs to be based on medical history, symptoms, blood tests and imaging tests, etc., and considered comprehensively under the guidance of specialized doctors.