This study is designed to evaluate the effects of aggressive fine motor exercise of unaffected hand in the hemiplegic patients. The 36 hemiplegic patients were classified into two groups: The experimental 18, who were treated by aggressive fine motor exercise in unaffected hand and the control, 18, who were treated by conventional exercise program. We evaluate the effects of aggressive fine motor exercise by Functional Independence Measure(FIM) and Jebsen Hand Function Test(JHFT) after 6 weeks program. After exercise program, the experimental group showed score change from $43.05{pm}15.68$ to $58.05{pm}17.12$ in FIM score and from $24.12{pm}22.03$ to $55.44{pm}21.50$ in Jebsen, and the control showed score change from $51.11{pm}22.61$ to $57.50{pm}23.66$ in FIM score and from $40.88{pm}21.17$ to $52.77{pm}19.42$ in Jebsen. The experimental group had significantly higher score in FIM and JHFT than that of the control group. The aggressive fine motor exercise is beneficial in unaffected hand in the hemiplegic patients.