This study was carried out (a) to investigate the variations of blood chemistry and (b) to examine the secretion trend of endocrine substances in a dog model after electroacupuncture and laser stimulation at different time period(9 to 11a.m. and 6 to 8p.m.). Two acupuncture points; Da Zhui(GV-14) and Shen Shu(BL-23) were electroacupunctured for 20 minutes with 2Vol, 20Hz and irradiated for 5 minutes with 8,000Hz. Before stimulation and after a lapse of time(10-minutes, 30-minutes and 60-minutes) all dogs were checked the following parameters; cortisol, ACTH, RBC, hemoglobin, hematocrit, WBC, Ca, P, SGPT, SGOT and creatinine. The results were as follow:The levels of cortisol and ACTH have been increased 10 minutes after the stimulation of the electroacupuncture and laser. The higher levels of cortisol and ACTH have been decreased to keep the normal levels from 30 minutes after the stimulation of the electroacupuncture and laser. The RBC, hemoglobin, hematocrit and WBC showed the physiological phenomena in the electroacupuncture and laser stimulation. In sero chemical analysis, calcium, phosphate, SGOT, SGPT and creatinine levels were within normal physiological ranges.