Aim To investigate the relationship between urinary albumin creatinine ratio （UACR） and brachial-ankle pulse wave velocity （baPWV） in type 2 diabetes patients. Methods A total of 800 type 2 diabetes mellitus （T2DM） patients were enrolled in a cross sectional study. baPWV, lipid, renal function, UACR, fasting C-peptide, glycosylated hemoglobin, serum calcium, serum phosphorus and parathyroid hormone were measured. The correlations between baPWV and parameters were analyzed. Results With the increased level of age, baPWV increased （P<0.001）. UACR levels were classified into three groups. The mean baPWV in group of UACR＞300 mg/g （1958.10±530.76 cm/s） was higher than group of UACR＜30 mg/g （1609.86±310.98 cm/s） and UACR 30～300 mg/g （1659.88±354.27 cm/s）, and the differences were statistically significant （both P<0.005）. Pearson analysis showed that age, systolic blood pressure, pulse pressure difference, serum urea nitrogen and UACR were positively correlated with baPWV （r＝0.554, 0.393, 0.440, 0.158, 0.300, all P<0.05）, while serum albumin, estimated glomerular filtration rate, phosphorus and multiplication of calcium and phosphorus were negtively correlated with baPWV （r＝－0.195,-0.261, －0.203, －0.176, all P<0.05）. In the multiple linear step-down regression model with baPWV as the dependent variable, age, systolic blood pressure and UACR were positively associated with baPWV （β＝0.488, 0.266, 0.143, t＝14.55, 8.12, 4.47, all P<0.001）, while phosphorus was inversely associated with baPWV （β＝－0.083, t＝－2.57, P<0.05）. Conclusion BaPWV was independently associated with age, systolic blood pressure, UACR and serum phosphorus.