Abstract: A 3D FEM stress-deformation analysis of the concrete-faced rockfill dam (CFRD) using the Wang-Wu hypoplastic model is presented. First, we analyzed this model and its parameters determined using conventional triaxial test curves of rockfill materials, and found out the defect of this method when applied to such materials. Therefore, for rockfill materials used in the present study, relationships of the parameters versus confining pressure were established and the model parameters were modified by using these relationships. We have considered the rotation of principal stress axes and derived a modulus matrix of the equations used in the model. Then, the model along with its modified parameters was applied to the stress-deformation analysis of a CFRD using the 3D finite element method, and compared with the Duncan E-B model and Shen Zhujiang’s double-yield surface model. The analysis showed that, of the main results calculated using the modified Wang-Wu model, the settlement of rockfill was close to that of Shen Zhujiang’s model, and the rest fell around those of the Duncan model, such as the distribution of rockfill horizontal displacements and the stress and deformation of face slabs in storage period. Thus, this paper recommends the Wang-Wu model along with the new calculations of its parameters as presented above for analysis of CFRD.