The conventional calculation method can not accurately reflect the actual stress of high concrete face rockfill dam, which causes the extrusion damage and structural crack of high face rockfill dam at home and abroad. This study uses Duncan E-B model to carry out three dimensional finite element analysis of high rockfill dam. The results indicated that the stress and settlement of high concrete face rockfill dam is small, most of the load was transferred to the foundation above dam axis by the main rockfill zone between the cushion layer and the transition layer, the dam shell material had enough deformation modulus and free drainage performance, and the porosity control was reasonable. The distribution of boundary stress in the dam rockfill area had no large mutation, the dam was divided into anti-seepage area, cushion zone, pile stone area and all dam areas met the mechanical requirements of the smooth transition. Therefore, the design of high concrete face rockfill dam was reasonable, which had reference value for similar engineering design.