Objective To investigate the distribution of TCM Constitution in hypertensive patients with diabetes mellitus by means of cross-sectional study. Methods A total of 150 hypertension patients from Shaanxi university of traditional Chinese medicine and Xianyang central hospital were selected from year 2014-2015, and were divided into two groups, including 62 patients complicated with diabetes, as the observation group; 88 patients without diabetes, as the control group. The distribution of TCM Constitution in the two groups was compared. Results The proportion of Yin deficiency constitution, phlegm dampness constitution in the observation group was relatively high, but the proportion of Qi deficiency and Yin deficiency in the control group was relatively high. Compared with the female patients, the proportion of Yin deficiency constitution, phlegm dampness constitution and blood stasis constitution of the male patients was higher, while the Qi depression constitution and the proportion of the specific physical constitution were relatively low, and the difference was statistically significant (χ2 value were 4.408, 3.723, 3.723, 3.964, 3.893, P value were 0.036, 0.044, 0.044, 0.046, 0.039). The factors like gender, age, BMI, alcohol intake, history of coronary heart disease, diet and taste preference were correlated with the physical types (B value were 1.967, 0.089, 0.017, -0.871, -0.959, -0.014, P<0.01 or P<0.05), and the taste preference and history of coronary heart disease posed a negative correlation with all types of constitution. Conclusions The types of TCM Constitution in hypertensive patients with diabetes are mainly Yin deficiency and phlegm dampness, and the patients with hypertension are the deficiency of Qi and Yin deficiency. The gender, age, BMI, alcohol consumption, coronary heart disease, and dietary preferences can influence the physical type of constitution. Key words: Hypertension; Diabetes mellitus; Physical constitution theory; Surveys and questionnaires