Objective To study the difference of radial artery pulse diagnosis between healthy people of mild constitution and Qi-Deficiency constitution. Methods The pulse wave information of 30 healthy people with mild constitution and 30 normal people with Qi-deficiency constitution were recorded by pulse diagnosis instrument. The pulse wave of multiple cycles was selected after pretreatment of pulse diagnosis information. The difference of pulse diagnosis information of two constitutions was analyzed. Results The h1, h4 and h4/hl of people with mild constitution were higher than that people with Qi-de...