The invention relates to a full-servo high-speed precise single-piece transverse cutting machine. The full-servo high-speed precise single-piece transverse cutting machine comprises a rack and furthercomprises a control device, an unwinding mechanism, an electric eye, a cutting device and a conveying device which are fixed to the rack. The control device comprises a control system, control buttons and a touch screen. The unwinding mechanism comprises an air expanding shaft, a conveying table, a flattening idler wheel arranged on the conveying table, and a plurality of conveying rollers and isused for unwinding and conveying a reel printed object to the cutting device. The electric eye is arranged on the front portion of the cutting device and used for positioning before cutting. The cutting device comprises a cutter and is used for cutting the printed object. The conveying device comprises a transmission shaft and a conveying belt and is used for conveying the cut printed object. According to the full-servo high-speed precise single-piece transverse cutting machine, the high-speed precise single-piece transverse cutting problem of the reel printed object is solved, the technological blank is filled, waste is avoided, the production efficiency is improved, economic benefits are increased, the production cost is lowered, and raw materials are saved.