Aim: To investigate the efficacy of umbilical cord blood stem cell transplantation for decompensation cirrhosis. Methods: Sterile umbilical cord blood was collected,and umbilical cord blood stem cells were separated and purified using negative screening mixing method. Thirty cases of Child C class decompensation cirrhosis patients with poor results after combined treatment of traditional medicine,were tested to exclude contraindications such as cancer,other important organ failure,etc.,and then were infused...