Background and Purpose: Most of the many studies associated with abdominal respiration were on ventilation, oxygen saturation, function of the diaphragm in healthy people, and on patients with pulmonary diseases. But, studies associated with respiration in patients with neurologic conditions are st피 insufficient despite the fact that they have cardiopulmonary disorders. The purpose of this study was to determine the movement of the diaphragm during abdominal respiration in hemiparetic patients. Subjects and Methods: This study was performed on 40 patients (22 males, 18 females) who were admitted in Cheonan Greenphil Hospital from March, 2008 to April 2008. The displacement of diaphragm movement during abdominal respiration was measured in the M-mode. Results: There was no significant difference in normal respiration of left and right hemiplegic patients, but there was a significant difference during abdominal respiration, showing 17mm in the left hemiplegic group, and 12mm in the right hemiplegic group(JJ<O.05L Also, in medical characteristics, there was no significant difference in normal and abdominal respiration according to sex and type of stroke. But, there was a significant difference in normal respiration according to damage of sensation, showing 5mm in patients with damage, 6mm in patients without damage. ln abdominal respiration, the displacement was 14mm in the patients with damage, and 17mm in the patients without damage(JJ<O.05).