Objective: To analyze the value of cardiac ultrasound and CT pulmonary artery imaging (CTPA) in monitoring right cardiac function and pulmonary vascular pressure in pulmonary hypertension (PH). Methods: The data of 42 PH patients included in the income of our hospital in June 2017~ December 2019 were counted and studied. All 42 patients underwent voluntary cardiac ultrasound and CTPA examination during the hospital. The correlation was analyzed by comparing the measured values of the two methods in the study of right heart and lung vascular structure. Contrast ultrasound differences in right ventricular ejection fraction (RVEF), right ventricular area change rate (RVFAC), tricuspid annulus systolic displacement (TAPSE), right ventricular myocardial function Tei index (RV Tei) in patients with different degrees. Results: CTPA the results of right atrial transverse diameter and right atrial upper and lower diameter, the values of right ventricular basal segment inner diameter and right ventricular anterior wall thickness, right ventricular transverse diameter/heart transverse diameter were significantly higher than those of ultrasound(P<0.05). The correlation between the two methods was 0.381,0.434, 0.416,0.546,0.486(all P<0.05). CTPA measured pulmonary artery trunk diameter (dPA), aortic diameter/liter aortic diameter (rPA) were significantly higher than those measured by ultrasound(P<0.05). The results were positively correlated and the coefficients were 0.453,0.422(all P<0.05). And CTPA rPA values were positively correlated with the mean pulmonary artery pressure measured by ultrasound(r=0.310, P<0.05). The RVEF、RVFAC、RV Tei index of patients with different degree of disease was significantly different by ultrasound (P<0.05). Conclusion: Both cardiac ultrasound and CT pulmonary artery imaging are suitable for right cardiac function examination in patients with pulmonary hypertension, and cardiac ultrasound can also be used for direct monitoring of patients with pulmonary vascular pressure and other kinetic indicators, which are worthy of clinical promotion.