It can replace part of the excretory function of the liver and partially overthink the jaundice, toxins and metabolites gathered in the body through the arterial-venous circuit to reduce the burden on the liver and give the damaged liver cells a chance to be repaired and regenerated, so as to cure the severe liver. The aim is to cure the severe liver. Patients with severe hepatitis have severe inflammation of the liver, with extensive hepatocyte degeneration and necrosis, which cannot ensure normal body needs, resulting in yellow eyes, yellow urine and yellow skin, extreme weakness and even unclear. If the continued necrosis of liver cells is not controlled in time, toxic metabolites and toxins from the body will accumulate significantly, eventually leading to life-threatening conditions. At this time, the above toxins must be removed as soon as possible in order to provide a favorable environment for liver cell repair and regeneration and to restore liver function to normal. This technology was introduced in our hospital 10 years ago, and has so far given new life to more than a thousand patients with severe hepatitis. Of course, the treatment of heavy hepatitis must be a combination of liver protection, anti-inflammatory, anti-viral, hepatocyte growth, supportive therapy and artificial liver, etc., and be carefully observed and adjusted by professional physicians and nurses in specialized wards in order to ensure better results.