Abstract: Cardiovascular disease is a common disease that seriously threatens human health, and occupies the first place in the death caused by various diseases. Studies have shown that cardiac diastolic function has been impaired even if there are no obvious clinical symptoms in the early stage of many cardiovascular diseases. From the view of early prevention, clinical diagnosis and late intervention treatment, it is of positive clinical significance to understand the changes of cardiac diastolic function as early as possible. At present, echocardiography is commonly used in clinical non- invasive evaluation of cardiac diastolic function, which can achieve the purpose of early detection of cardiac diastolic function, and has important value for early diagnosis, curative effect evaluation and prognosis of the disease. By reviewing the related literature at home and abroad, this paper reviews the research status of pulsed Doppler, color M-mode echocardiography, tissue Doppler, Real- time threedimensional echocardiography, Tei index and Two-dimensional speckle tracking technique commonly used in echocardiography to evaluate cardiac diastolic function. As a new technique, two-dimensional speckle tracking technique has been widely studied and applied in the evaluation of left ventricular diastolic function. Its independent characteristic makes it simpler, more feasible and more accurate than other methods. In addition, the advantages and disadvantages of common methods for evaluating cardiac diastolic function in echocardiography were also analyzed. In conclusion, ultrasonic technology for evaluating cardiac diastolic function will become more and more advanced with the improvement of science and technology, and will play an irreplaceable role in medical imaging and even the whole field of ultrasound medicine in the future.