The　correlation　between　crystallographic　orientation　textures　(including　orientation　textures　of　grain　and　grain　boundary　plane)　and　magnetic　properties　of　(Sm,Pr)(2)Co-7　phase　(short　as　2:7　phase　later)　in　high-performance　commercial　(Sm,Pr)Co-5　sintered　magnet　has　been　investigated.　The　Rietveld　analysis　shows　that　there　is　about　6.9　wt%　of　2:7　phase　in　the　magnet.　EBSD　results　indicate　that　the　grains　are　strongly　textured　and　the　{0001}　orientation　texture　are　remarkably　preferred.　Moreover,　the　grain　boundary　planes　are　also　textured.　However,　the　100011　orientation　texture　of　2:7　phase　is　slightly　worse　than　that　of　(Sm,Pr)Co-5　phase　(short　as　1:5　phase　later).　Moreover,　the　distribution　of　grain　boundary　plane　has　been　calculated　by　the　grain　orientation　texture　in　the　magnet.　The　most　preferential　plane　distribution　locates　at　100011　position,　and　the　normal　line　of　the　phase　boundary　plane　between　the　2:7　phase　and　1:5　phase　is　perpendicular　to　the　easy　axis　of　the　magnetization　of　the　magnet.　There　is　difference　in　crystallographic　orientation　textures　of　2:7　phase　and　1:5　phase,　which　specifies　that　the　orientation　degree　of　phases　is　different.　Furthermore,　the　orientation　degree　in　turn　affects　the　remanence,　suggesting　the　presence　of　2:7　phase　will　slightly　reduce　it.　Meanwhile,　magnetooptical　Kerr　optical　microscope　observation　shows　that　the　domain　widths　of　2:7　phase　and　1:5　phase　are　almost　the　same,　and　there　is　no　obvious　difference　in　the　reversal　sequence　of　magnetic　domain.　The　results　proved　that　2:7　phase　has　no　significant　negative　effect　on　the　coercivity.　Therefore,　the　magnet　has　a　crystallographic-orientation-dependent　magnetic　property.　Besides,　the　study　suggests　that　the　anisotropy　of　crystal　plane　energy　may　become　a　new　method　to　characterize　the　performance　of　permanent　magnets　in　the　future.