Background: There were many studies of left ventricular (LV) diastolic function in patients with myocardial infarction. However, in Viet Nam, there was no research about the LV function on patients with angina pectoris. Objectives: Studying the change of left ventricular diastolic function in patients with angina pectoris. Methods: Prospective, cross-sectional study. Results: In this study, the first group consisted of 224 patients suffered from angina pectoris (average age was 59.56 ± 10.9 years old); the second group (controls) was consisted of 81 healthy persons (average age was 58.52 ± 10.15).