A 75-year-old male has suffered from chronic idiopathic hiccup for ten years. Conventional treatment, such as stellate ganglion block, phrenic nerve block, and medication with carbamazepin had no effect. Although baclofen treatment rather increased the frequency of hiccup, the duration of the attack of hiccup was decreased. As a result, the total hours of hiccup in a month and in a day was decreased by baclofen treatment. Furthermore, baclofen treatment improved the complicating symptoms, such as dyspnea and vomiting, brought on by hiccup.