Objectives : The purpose of this study is examining the effects of appling acupressure to acupuncture points (study group) and Interferential current therapy (ICT) to cervical region (control group) on the cerebral blood flow of 20 tension-type headache patients and the reduction of their headaches. For approaching this examination, clinical research was conducted for three weeks those two groups, each contains 10 patients. Methods : We stimulated 7 acupuncture points for headache with the acupressure (for three weeks) and applied ICT to cervical region. Also we measured VAS (visual analogue scale) and the blood flow of the vertebral arteries with TCD (transcranial doppler ultrasonography). Results : (1) When the left and right vertebral artery of study group was compared each time, significant differences were found after the 1st treatment (p<.001). Also the significant differences were found after 2, 3weeks treatment (p<.05). (2) When the Visual Analog Scale of study group were compared periodically, the significant reductions were found after the 1 week treatments (p<.05). Also the significant differences were found after 2, 3 weeks treatments (p<.001). In the case of the control group, the significant reduction were found after the 2 and 3 weeks treatments (p<.001). Conclusions : The acupressure applied to acupuncture points reduced the headache and increased the ratio of cerebral blood flow.