Objectives: The purpose of this study is to report the effects of Korean medical hospitalization on six breast cancer patients who received chemotherapy. Methods: Six patients were diagnosed with breast cancer, and were admitted after chemotherapy. The patients were treated by Traditional Korean Medicine such as herb medication, acupuncture and moxibustion. Results: After the treatment, the adverse effects of chemotherapy such as general weakness and digestion disorder were improved. Conclusions: The case report shows that Korean medical hospitalization can be an effective option for treating breast cancer patients who received chemotherapy.