Objective: To explore the effect of a eye patching technique in order to decrease patients’ unilateral neglect. For this study, eye patching is easy to get and a simple method that most patients find acceptable. Method: This study used the ABA design. The subject was a male patient at the age of 66 who had the left hemiplegia and left unilateral neglect caused by right cerebral vascular accident. He was required to wear the eye patching on the right eye during all the period of ADL because unilateral neglect causes many problems in the majority of ADL. The assessments for the unilateral neglect had been performed by the Line bisection and the Albert test once a session (day). Results: Regarding the Means of the errors to the Line bisection and the Albert test, the Means of the errors was decreased during the period of the intervention (B) and was decreased after the withdrawal (A'). Conclusions: Right monocular patching was effective to release the unilateral neglect. Further study is necessary to increase the sample size and the duration of experiments.