In order to investigate the influence of cutting parameters on machined surface temperature and subsurface damages, a CFRP orthogonal cutting experiment was conducted at various fiber cutting angles with different rake angles, flank angles and cutting depths, and cutting temperature was also measured. Results show the increasing of rake angle and flank angle can decrease the cutting force and surface temperature by decreasing the compressive force and contact area between flank face and machined wall separately. The most serious subsurface damages occur when against fiber cutting, which are induced by fiber bending fracture, resulting in obvious serrated surface at θ =150°. The fiber bending angle and irregular fracture are decreased with rake angle and flank angle increasing. Moreover, the obvious increase trends of cutting force, machined surface temperature and subsurface damage are confirmed as cutting depth increased.