Two patients with funnel chest deformity were corrected in the department of Thoracic Surgery, N.M.C. The first case was a 12 months old male suffering from recurrent upper respiratory tract infection and symmetrical funnel chest deformity, of which hollow cavity was measured 40 ml of water. He was corrected by method of sternal turnover. The result was satisfactory. The second case was a 16 years old male suffering from exertional dyspnea, recurrent upper respiratory tract infection, wheezing sound [esp., at night], and asymmetrical funnel chest deformity, of which hollow cavity was measured 80 ml of water. He was corrected by modified Ravitch method. Until postoperative 4 months, result was satisfactory. Thereafter, respiratory wheezing, exertional dyspnea and chest wall deformity were returned to pre-operative status. [KTCS 1982;3:303-307]