The invention relates to a vacuum N-axis N-cutter ring-shaped rubber cutting machine, which consists of a machine table, a main shaft operation device, a vacuum device, a workpiece loading and clamping device, an automatic product unloading device, a cutter motion device and a program control device, wherein the main shaft operation device consists of N main shafts and a spindle and a main shaft transmission device which are connected with the N main shafts, the spindle is sleeved with a to-be-cut rubber workpiece with a ring-shaped cross section, and the transmission device drives the N mainshafts to rotate synchronously; the cutter motion device comprises a linear worktable, a servo motor and a feed cylinder, the vacuum device is connected with an inner cavity of the spindle of the main shafts of the cutting machine through pipes and a rotary connector, and the spindle is provided with a row of exhaust holes; the exhaust holes of the spindle are exhaust holes used for the vacuum absorption of the ring-shaped rubber workpiece on the spindle and the fixation of the ring-shaped rubber workpiece on the spindle; the automatic product unloading device consists of a material returningcylinder and a material unloading sleeve linked with the material returning cylinder; and the workpiece loading and clamping device consists of a oblique bottom material box, a roller, a stepper motor, a bracket, a photoelectric sensor, and a tail bracket cylinder part.