This Multi-centre study indicated that ‘G410DfsX1’ in BMPR2, ‘ex7 L300P,’ ‘ex4 S110PfsX40,’ ‘ex7 E295Afs96X’ in ALK1, ‘c.-2C>A (IVS1–2 C>A)’ in CAV1, and ‘ex8 D366Q’ in ENG were identified in Han Chinese patients with PAH. Here, ACVRL1 is linked to pulmonary arterial hypertension.