Purpose This study was aimed at determining the effect of computer assisted cognitive rehabilitation on visual perception and cognition in early stroke patient. Methods Twenty early stroke patients were participated voluntarily and were assigned randomly into experimental group and control group. Participants in the experimental group received computer assisted cognitive rehabilitation (RehaCom program) training (20min) and conventional occupational therapy (20min), but participants in the control group received conventional occupational therapy(40min). Both group received training for three times per week for six weeks. Before and after 6weeks of intervention, an motorfree visual perception test(MVPT), Line Bisection Test(LBT), Mini Mental State ExamKorean (MMSEK) were performed and results were analyzed. Results Experimental group and control group improved more significantly after 6 weeks after treatment in MVPT, LBT, MMSEK(p<.05). However, experimental group was more effective than control group in increasing the MVPT, MMSEK (p<.05) and decreasing LBT(p<.05). Conclusion we suggest that the computer assisted cognitive rehabilitation(RehaCom program) training may be effective in improving the visual perception function in the early stroke patients.