Objective: The purpose of this study was to report on Korean medicine in the clinical improvement of a patient with right hemiplegia due to cerebral infarction.Methods: The patient was treated with Korean medicine, including <i>Kangwhalyupung-tang</i>. To assess the treatment outcomes, we used the manual muscle test (MMT), the EuroQoL 5 Dimensions (EQ-5D) scale, and the numeral rating scale (NRS).Results: The patient’s clinical symptoms improved after 15 days of treatment with Korean medicine. The MMT score of right big toe extension and elbow flexion, where muscle weakness was most prominent, improved from G4 to G4+. The NRS score decreased from 6 to 4, and the EQ-5D score increased from 0.664 to 0.783. The patient had mild insomnia at the beginning of the treatment, but by subtracting Ma-huang from the prescription, he returned to sleepping normally. There were no other severe adverse effects from the Korean medicine.Conclusion: This study suggests the possibility of Korean medicine in the treatment of hemiplegia after cerebral infarction.