A　series　of　solid　solutions　of　GaxFe4-xN　(0　＜=　x　＜=.0.9)　powders　were　synthesized　by　solid　gas　reaction,　and　were　formed　with　10wt%　paraffin　as　a　binder　to　be　bonded　magnets.　The　effect　of　Ga　doping　on　crystal　structure,　saturated　magnetization,　coercivity　and　complex　permeability　of　Fe4N　was　investigated.　The　results　show　that　the　lattice　parameters　of　the　nitrides　increase　with　increasing　content　of　Ga　ions.　The　saturation　magnetization　of　GaxFe4-xN　reveals　an　almost　linear　decrease　with　increasing　Ga　content.　On　the　other　hand,　appropriate　amount　of　Ga　doping　in　Fe4N　powder　reduces　the　coercivity.　When　x　changes　within　the　range　from　0.4　to　0.6,　a　minimum　value　of　coercivity　H-c　can　reach　10　Oe.　Within　the　frequency　range　of　10　MHz　similar　to　1　GHz,　a　small　amount　of　Ga　doping　can　slightly　increase　the　initial　permeability　and　the　maximum　of　imaginary　part,　but　reduces　the　cut-off　frequency.　With　the　further　increase　of　Ga　doping,　the　permeability　decreases　distinctly.