Objective : The purpose of this study is to report treated case about patient with diplopia caused by stroke. Methods : The improvement of diplopia was observed as he was treated with acupuncture therapy and herb medicine named Bo-gan-san(保肝散). Results : Diplopia improved and disappeared gradually with acupuncture therapy and herb medicine named Bo-gan-san(保肝散). The patient was discharged with favorable recovery. Conclusion : In traditional Korean medicine, diplopia is caused by disorder of JungKi(精氣), intrusion of PoongSa(風邪) into Neoi(腦), and hollowness of Gan(肝), Shin(腎). Treating it is by expelling PoongSa(風邪) or strengthening Gan(肝), Shin(腎). The patient was diagnosed as cerebral infarction according to Brain MRI. Diplopia was improved after acupunctural therapy and intaking Bo-gan-san(保肝散), herbal prescription selected from DongYiBoGam(東醫寶鑑).