During　the　dry　cutting　of　difficult-to-machine　materials,　the　cutting　tools　are　subjected　to　high　temperatures　and　pressures　due　to　the　serious　friction　at　the　tool-chip　interface,　which　leads　to　severe　tool　wear.　To　improve　the　tribological　properties　of　the　cutting　tool　surface,　this　paper　investigates　the　friction-reducing　mechanisms　of　surface　texture　on　YG8　cemented　carbide　under　dry　conditions　through　friction　and　wear　tests.　The　results　show　that　surface　texture　effectively　reduces　the　coefficient　of　friction　(CoF)　and　the　wear　rate　of　cemented　carbide.　Compared　with　the　smooth　surface,　the　average　CoF　value　of　parallel　micro-groove,　perpendicular　micro-groove　(PE)　and　hexagonal　texture　(HE)　decreased　by　16.5,　24.0　and　29.9%,　respectively,　and　the　wear　rate　decreased　by　24.1,　55.1　and　66.0%,　respectively.　The　friction-reducing　mechanisms　of　surface　texture　change　during　the　different　dry　sliding　stages.　In　the　early　stage,　the　grooves　of　the　textured　samples　reduce　surface　wear　by　accommodating　metal　debris.　In　the　later　stage,　the　grooves　on　the　PE　and　HE　surfaces　are　filled　with　metal　debris,　which　cannot　further　accommodate　metal　debris,　instead　of　forming　the　soft-hard　composite　surface　with　lower　CoF　value　and　higher　wear　resistance.　The　results　of　FEM　show　that　the　formation　of　the　soft-hard　composite　surface　can　reduce　the　maximum　principal　stress　and　make　the　stress　distribution　more　uniform,　which　proves　that　the　soft-hard　composite　surface　has　excellent　performance　on　the　other　hand.