Hydatid cysts are endemic hooknoses in Iran. It may involve various organs of body.Liver is involved in 80% and lung in 10- 15%of cases. 25% of pulmonary hydatid cyst is bilateral.Before any transplantations eradication of infection is necessary.In a 26-year old man with renal failure referred for kidney transplantation. On initial preoperative evaluation of this patient hydatid cyst lesion was found in two lungs, left side operated,and right side left in place. Under treatment with albendazole kidney transplantation was performed. After two-year of follow-up, patient was in good condition and the size of right cyst did not increased