介绍了铸态奥－贝球铁的制取方法及其组织和性能。并研究了铸态奥－贝球铁抗汽蚀特性。实验表明，铸态奥－贝球铁的抗汽蚀性能比普通球铁高出约３倍，Ｎｉ，Ｍｏ，Ｃｕ和Ｂ等元素对铸态奥－贝球铁的组织、机械性能及抗汽蚀性都起着十分重要的作用，保留在室温的奥氏体组织有着良好的抗汽蚀性． The preparation method, microstructure and properties of as-cast austenite ductile iron are introduced. The anti-cavitation properties of as-cast austenitic-ductile iron were studied. The experimental results show that the cavitation resistance of as-cast austenitic-billets is about 3 times higher than that of ordinary ductile iron. The microstructure, mechanical properties and resistance to as-cast austenite-billets of Ni, Mo, Cu and B, Erosion plays a very important role, retained at room temperature austenitic tissue has good resistance to cavitation.