To observe the change regularity of infrared temperature of Conception Vessel (CV) in women''s menstrual period, the infrared radiation images of ten young healthy women in their menstrual periods, ovulation periods and luteal phases were obtained by infrared thermography. The analysis results showed that the change of body surface infrared temperature at the Guanyuan acupoint had remarkable synchrony with the curve of basal body temperature in the menstrual period. The surface temperature at the Shenque acupoint decreased to the lowest point in the ovulation period, which had a remarkable difference (P<0.05) compared with that in the menstrural period or luteal period. This periodical change at Shenque acupoint was the objective expression of the traditional Chinese medical theory about the accumulation of qi and blood in female uterus. This suggested that the abdominal conception vessel and its acupoints on abdomen of healthy women showed specific thermal characteristics during the different phase of menstruation,which provided evidence for its application in diagnosis and treatment of gynecological diseases.