Abstract: The oxygenstabilized ηphase Zr3V3O was prepared by arcmelting the appropriate quantities of Zr metal, V metal, and V2O5 powder in an argon atmosphere. The crystal structure of intermetallic Zr3V3O was simulated by Material Studio and the phase structural characteristics of the alloy and its hydride were determined by Xray powder diffraction. Experimental results show the cast and the hydride contain some amount of other phases as well as ηphase.