The transforming growth factor-β(TGF-β) superfamily is composed of many cytokines,mainly including of TGF-βs and bone morphogenetic proteins(BMPs). Recently,antagonism effect between TGF-βs and BMPs on proliferation in pulmonary artery smooth muscle cells is showed. Furthermore,individual genes variation might cause to different,even opposite effects of TGF-βs or BMPs on the proliferation. This article reviewed the regulation of TGF-β and BMPs signal pathways on abnormal proliferation in pul-monary artery smooth muscle cells.