The growth and spectra characteristics of Eu,Ce and Gd,Ce co-doped YAG single crystals phosphor used for white LED were investigated. Eu,Ce:YAG and Gd,Ce:YAG single crystals were grown by Czochralski method, and their luminescence properties were studied in terms of absorption, emission and excitation spectra. Date analysis reveals that a broad emission band range from 480-650 nm can be produced with blue light excitation. Eu3+ or Gd3+ co-doped ions could affect the emission properties of Ce:YAG crystal: Eu3+ ions co-doping will have the Ce3+ ions luminous quenching effect. On the contrary, Gd3+ ions, which is substituted at the Y site, would shift the emission spectra of Ce:YAG crystal to the red spectra