Global　in　time　weak　solutions　to　the　alpha-model　regularization　for　the　three　dimensional　Euler-Poisson　equations　are　considered　in　this　paper.　We　prove　the　existence　of　global　weak　solutions　to　alpha-model　regularization　for　the　three　dimension　compressible　Euler-Poisson　equations　by　using　the　Fadeo-Galerkin　method　and　the　compactness　arguments　on　the　condition　that　the　adiabatic　constant　satisfies　gamma　＞　4/3.