In living-donor lobar lung transplantation, donor lobectomies must be performed carefully for both donors and recipients. Furthermore, the recipients undergo pneumonectomies rather than lobectomies. Occasionally, anastomosis of the pulmonary vessels is difficult in living-donor lobar lung transplantation because of the limited length of the pulmonary vessels in the graft. This report describes a successful case of pulmonary venoplasty using an autologous pericardial conduit, which was interposed between the superior pulmonary vein of the recipient and the inferior pulmonary vein of the donor in living-donor lobar lung retransplantation. This technique may be required for the success of living-donor lobar lung retransplantation.