The　surface　energies　on　12　different　planes　of　Cu　crystal　have　been　calculated　with　modified　embedded-atom　method.　The　results　show　that　the　lowest　surface　energy,　as　predicted,　corresponds　to　the　close-packed　plane　(111)　of　face-centered　cubic　(FCC)　structure.　The　surface　energies　on　other　planes　show　a　tendency　to　increase　with　increasing　angle　between　the　planes　and　(111)　plane.　So　the　relative　values　in　surface　energy　for　other　planes　could　be　estimated　by　their　geometric　relationship.　The　geometric　structure　factors　and　the　methods　applied　to　determine　them　could　be　used　directly　for　surface　energy　and　other　property　calculations　in　the　materials　with　FCC　structure.　The　(111)　texture　observed　extensively　in　Cu,　Ag　and　other　FCC　films　results　from　the　surface　energy　minimization.