Methods: 317 diabetic patients in our hospital from January in 2004 to July in 2008 were divided into 2 groups: group A (106 patients whose age ranged from (31-59) and group B (211 patients whose age ranged from (60-90). The height, weight, blood glucose, glycosylated hemoglobin, lipid, blood pressure, course of disease, ejection fraction (EF), fractional shortening(FS), diameter of left ventricle in late diastolic stage(LVEDd), the thickness of the ventricular septa（IVSDand the posterior wall of the right ventricle in late diastolic stage (LVPWd)were recorded respectively. Left ventricular mass index (LVMI), relative wall thickness (RWT) were calculated and High-sensitive C-reactive protein (HsCRP), homocysteine and TNF-α were detected. Multifactor logistic regression was made based on the comparison and contrast between all indexes to analyze the correlations between age and the positive indexes.