The purpose of this study is to report the clinical effects of modified Seogakjihwang-tang on a patient who had headache and memory disorder after traumatic brain injury, which were considered as the result of blood stasis. The patient had headache and memory disorder after traumatic brain injury and treated with modified Seogakjihwang-tang three times a day for 60days. As a result, the numerical rating scale and pain rating score of headache decreased and the scores of mini-mental state examination-Korea, the Korean version of Montreal cognitive assessment and the mini-memory test increased during treatment with modified Seogakjihwang-tang. Therefore, this case supports a possibility that modified Seogakjihwang-tang might be an effective treatment to patients with headache and memory disorder after traumatic brain injury.