The invention discloses a full-automatic efficient discharging sawing machine. The full-automatic efficient discharging sawing machine comprises a material rack, a feeding device, a material pushing device, a base, a sawing device, a positioning device and a compressing device. The feeding device and the material pushing device are installed on a feeding rack. The feeding rack is horizontally connected with the base. The base comprises a bottom frame and a rotating workbench. The sawing device comprises a guide rail, a screw rod, a saw blade and a spindle motor. The guide rail is fixed to the rotating workbench through a guide rail base. The spindle motor is slidably connected with the guide rail through a motor base. The saw blade is installed on the spindle motor. The positioning device is installed on the base. The compressing device is installed on the rotating workbench and located above the sawing device. The full-automatic efficient discharging sawing machine is capable of automatically completing the feeding and discharging processes of various sectional materials, high in discharging efficiency, low in discharging cost, and worth popularizing.