The objective indices of tongue picture of blood stasis symptom-complex in 400 patients with portal hypertension, primary hepatic carcinoma, coronary heart disease, pulmonary heart disease, intermediate and advanced gastric carcinoma were observed during the period of past 6 years. Pale purplish tongue, purplish tongue, bluish purplish tongue, deep-red purplish tongue, dark tongue, yellow purplish tongue etc. were found in these patients. All these were the tongue colour of blood stasis. Ecchymosis, patechiae, streaks, the width of sublingual vein, the appearance of veins and prominences, B mode ultrasonic examination displaying the width of intralingual vein and tissue sound transmission of the tongue body, the blood stasis changes of tongue tip microcirculation, the wave form changes of tongue rheogram had an important significance for diagnosis of blood stasis. There were significant differences in these variables between the subject group and the healthy group or the subject group and the blood non-stasis group statistically (P less than 0.001).