The invention discloses an efficient stereo engraving machine which comprises cylinder seats, a cutter frame sliding mechanism, a servo drive mechanism, a turning connector and a workpiece clamping device; the cylinder seats are symmetrically arranged at the top end of a supporting frame; the cutter frame sliding mechanism is installed between push rods; the servo drive mechanism is arranged on the cutter frame sliding mechanism; the turning connector is used for connecting the servo drive mechanism and a cutter frame; and the workpiece clamping device is arranged at one end of a table board. According to the efficient stereo engraving machine provided by the invention, the smooth movement of the cutter frame sliding mechanism is controlled by cylinders and guide rails, and the servo drive mechanism is connected with the cutter frame through the turning connector, so that an angle of a cutter can be flexibly changed during engraving; and an air cooling spindle can blow sundries into a garbage collection groove during engraving, a rotary seat mounted on a mobile platform is beneficial to turning of a workpiece being engraved, and the workpiece can be fixed by utilizing the table board and the workpiece clamping device if being a surface plate, so that the efficient stereo engraving machine has a reasonable structure and is suitable for being widely popularized.