AIM:To discuss the clinical effectiveness of superior rectus and inferior rectus muscle Hummelscheim displacement in treating abducent paralytic strabismus·METHODS:Totally 20 cases(21 eyes) of severe esotropia caused by abducent paralysis were treated by superior rectus and inferior rectus muscle Hummelscheim displacement during January 2004 to June 2010 in our hospital.The effectiveness was analyzed·RESULTS:Treated by superior rectus and inferior rectus muscle Hummelscheim displacement,esotropia of 20 cases of abducent paralytic strabismus was corrected significantly.After 6 months to 3 years follow-up,the eye position kept stable and no obvious change occurred·CONCLUSION:Superior rectus and inferior rectus muscle Hummelscheim displacement is practical in treating abducent paralytic strabismus and its outcome is stable.