Bronchopulmonary dysplasia (BPD) is a common premature chronic respiratory disease affecting the survival rate and the quality of life of premature infants. Pulmonary hypertension is a common complication of neonatal chronic respiratory diseases including BPD. Studies have shown that the mortality rate of BPD-associated pulmonary hypertension was 14%-38%. Although there are many methods to diagnose BPD-associated pulmonary hypertension, echocardiography is the most important one. The pathogenesis and preventive measures of BPD-associated pulmonary hypertension have not been fully elucidated. In-depth study on BPD-associated pulmonary hypertension is beneficial to reduce the mortality and improve the prognosis of children. This paper reviews the risk factors, pathogenesis, diagnosis criteria, screening methods and control measures of BPD-associated pulmonary hypertension.