Aim To research the correlation between atherosclerosis on carotid artery and the systolic and diastolic function of left ventricular in cerebral infarction combined hypertension patients. Methods The study collected ultrasonic indexs of atherosclerosis on carotid artery and left ventricular systolic and diastolic function in 100 hypertension patients （abbreviated group of hypertension）, 100 cerebral infarction patients （abbreviated group of cerebral infarction） and 100 cerebral infarction combined hypertension patients （abbreviated group of combination）. Ejection fraction （EF） was used as systolic function index, ratio of blood flow velocity between early filling of E peak and late filling A peak （E/A） on flow chart of mitral was used as diastolic function index. Logistic regression analysis was used to explore the correlation in themselves. Results There aren’t correlations between atherosclerosis on carotid artery and the systolic function of left ventricular in the three groups of patients （P>0.05）. However there are correlations between atherosclerosis on carotid artery and the diastolic function of left ventricular in the three groups of patients （P<0.05）. And the correlation between the form of carotid atherosclerotic plaque and diastolic function of left ventricular in group of combination is more significant than in other groups （P<0.01）. Conclusions Atherosclerosis on carotid artery is related with the diastolic function of left ventricular in the three groups of patients. Moreover it is most obvious in the group of combination. The more serious damage of left ventricular diastolic function, the more obvious arteriosclerosis on carotid artery.