Objective Established Vascular dementia rat model of qi-deficiency and blood-stasis syndrome,and its empirical research.Method 100 rats were randomized,68 model group,sham operation group 16,control group 16. 2-VO rats after using the Morris water maze testing for the detection of rat model of learning and memory ability,within 30 days after the qi and blood circulation drug intervention,the same test,and use relevant data to disprove animal models.Results 2-VO after test results are:4th and 5th day of the escape latency was significantly longer than the normal group and sham group;model rats ...