Background: morphological changes and the carotid artery have a prognostic value for complications in target organs related to primary hypertension. Purpose: To evaluate the association between morphological changes and functional damage to the carotid bodies of hypertensive target primary. Subjects and Methods: Survey 98 patients of primary hypertension, examined and treated at 'No.108 Hospital from January 7/2007-4/2008. including 64 men and 34 women. Their average age is 60.02 + or - 11.57. Excluding patients with secondary hypertension, type 2 diabetes, smoking, blood lipid disorders. Patients received clinical examination, blood tests, electrocardiogram, cardiac ultrasound and Doppler ultrasound carotid Doppler ultrasound method and B-mode, assessment intima- media thickness in the carotid artery, the ratio of medium thickness inner diameter opening on heart disease, measuring blood flow velocity (Vs, Vd), the resistance index (RI). Statistics are processed on SPSS 15.0 software. Conclusion: The high desert inner layer thickness, rate content and mac layer thickness on the diameter of heart and vascular resistance index of the carotid arteries of hypertensive patients with cornplications of left Ventricular hypertrophy and renal, a stroke on the brain, retina disease higher than among hypertension without complications, significant differences (p 0.05).