Objective To analyze to decrease surgical complications and to improve patients prognoses of treatment of lung cancer of aged.Methods 116 cases of aged lung cancer patients(more than 75 years old) treated by surgery were retrospectively analyzed.Results The first symptoms of aged lung cancer patients were usually cough,chest pain,hemoptysis and fever.Combined diseases before surgery and complications after surgery were high.Conclusion Surgical treatment in the case of strictly controlling indications can increase survival rate of aged lung cancer patients.To correctly deal with combined diseases before surgery and complications after surgery and to enhance after surgery monitoring are the keys to improve prognoses.