Hypertension is becoming a common health problem worldwide with increasing life expectancy and increasing prevalence of risk factors. Hypertension was positively associated with body mass index. Previous studies have detected that increased iron accumulation mainly in deep gray matter nucleus and CSF in hypertensive patients. There has no study about the correlates of physiological parameters and magnetic susceptibility of brain in hypertension. The present study used Pearson's correlation test to compare the relationship between the magnetic susceptibility of brain tissue and BMI, maximum systolic blood pressure and maximum diastolic blood pressure in hypertensive patients.