The invention discloses a full-automatic multi-head template sewing machine which comprises a main frame and a rack. A main beam is fixed in the middle of the rack, multiple machine heads are fixed to the main beam, and a worktable plate is further fixed to the rack. The main beam is located in the middle of the worktable plate, a main driving motor is fixed to the main beam, a general transmission main shaft is fixed to an output shaft of the main driving motor through a coupler, main transmission shafts arranged on the machine heads stretch out of the main beam and are fixedly provided with bevel gears, the general transmission main shaft is hinged in a supporting shell fixed to the main beam, a transmission bevel gear is fixed to the part, located in the supporting shell, of the general transmission main shaft, and the bevel gears are meshed with the transmission bevel gear. The main frame is arranged on the worktable plate. A template frame is fixed in the main frame on the worktable plate, the main frame is driven by an X-axis sliding device and a Y-axis sliding device which are arranged on the rack to achieve transverse and longitudinal movement, and thus the movement precision is high; moving of the template frame is achieved through moving of the main frame, and thus the processing efficiency is high.