Automatic packing machine can automatically plastic packaging arranged, loaded into the open carton, and complete the sealing tape and other equipment packing equipment, all movements are done automatically. The machine adopts a new combined structure, including functional units such as a box-forming device, an alignment device, a filling device and a sealing device, respectively, to complete corresponding functional actions, and each device is installed on the same main frame. The box blank of the box-forming device is above, the filling device is directly below the box-forming device, the whole column is arranged in front of the filling device, and the sealing device is arranged at the back of the filling device. Use P.L.C + touch screen control. Greatly facilitate the operation and management, reduce production personnel and labor intensity, is the necessary equipment for automated mass production.