From March 31 to April 1, 2018, the 2nd Guangzhou International Summit Forum on Pulmonary Artery Hypertension & the 4th South China Learning Class of Pulmonary Vascular Disease Diagnosis and Treatment were held ceremoniously at the Yuexiu Campus of Guangzhou Medical University. The conference gathered more than 40 experts and scholars from the global field of pulmonary vascular diseases, which was an important platform for promoting the diagnosis and treatment of pulmonary vascular diseases in China and attended by more than two hundred trainees across China.