In　this　paper,　the　responses　of　machined　surface　roughness　and　milling　tool　cutting　forces　under　the　different　milling　processing　parameters　(cutting　speed　v,　feed　rate　f,　and　axial　cutting　depth　ap)　are　experimentally　investigated　to　meet　the　increasing　requirements　for　the　mechanical　machining　of　T2　pure　copper.　The　effects　of　different　milling　processing　parameters　on　cutting　force　and　tool　displacement　acceleration　are　studied　based　on　orthogonal　and　single-factor　milling　experiments.　The　three-dimensional　morphologies　of　the　workpieces　are　observed,　and　a　white-light　topography　instrument　measures　the　surface　roughness.　The　results　show　that　the　degree　of　influence　on　Sa　(surface　arithmetic　mean　deviation)　and　Sq　(surface　root　mean　square　deviation)　from　high　to　low　level　is　the　v,　the　f,　and　the　ap.　When　v　=　600　m/min,　ap　=　0.5　mm,　f　=　0.1　mm/r,　Sa　and　Sq　are　1.80　μm　and　2.25　μm,　respectively.　The　cutting　forces　in　the　three　directions　negatively　correlate　with　increased　cutting　speed;　when　v　=　600　m/min,　Fx　reaches　its　lowest　value.　In　contrast,　an　increase　in　the　feed　rate　and　the　axial　cutting　depth　significantly　increases　Fx.　The　tool　displacement　acceleration　amplitudes　demonstrate　a　positive　relationship.　Variation　of　the　tool　displacement　acceleration　states　leads　to　the　different　microstructure　of　the　machined　surfaces.　Therefore,　selecting　the　appropriate　milling　processing　parameters　has　a　positive　effect　on　reducing　the　tool　displacement　acceleration,　improving　the　machined　surface　quality　of　T2　pure　copper,　and　extending　the　tool’s　life.　The　optimal　milling　processing　parameters　in　this　paper　are　the　v　=　600　m/min,　ap　=　0.5　mm,　and　f　=　0.1　mm/r.　©　2023　by　the　authors.