Abstract: Studies on deformation behavior of 300 m high-concrete face rockfill dams are conducted using three-dimensional finite element numeral analysis method. Dam zoning and properties of materials for rockfill dams especially the rockfill creep are the main factors having an effect on the deformation behavior of super-high concrete face rockfill dams . The bulging pattern deformation of upstream part of dam body for super-high CFRD should be paid attention to. Some measures are put forward, including testing and selecting embankment materials reasonably, modification of placement criteria for downstream part of dam, balanced placement of the whole dam section placing, good embankment materials with high deformation modulus at top part of 1/3 dam height, pouring of concrete of face slab after getting stable basically of dam deformation and setting of horizontal joint of face slab in order to improve the stress-deformation behavior of super-high CFRD.