If the ratio liver graft weight/recipient body weight ratio is below 0.8%, there is a high risk of primary non function of the graft in almost 50% of cases. We report the first elective Auxiliary Partial Orthotopic Liver Transplantation using a small cadaveric left graft for cirrhosis. The graft weight/recipient body weight rate was 0.6%. This technique avoided the small-for-size syndrome in the early postoperative period. The native right liver was resected two months later. With a follow-up of 5 years, the patient is in good condition. This original technique could be a solution to increase the number of transplantations using small grafts, especially left grafts, provided by splits or living donors.