The invention discloses an automatic ton bag supplying device and an automatic ton bag packaging system. The automatic ton bag supplying device comprises a bag supplying support, smooth shafts, a servo bag feeding mechanism, a hung bag conveying and locating mechanism, a servo traction mechanism and a hung bag fixing and locking mechanism. The automatic ton bag packaging system comprises the automatic ton bag supplying device, an automatic material feeding mechanism, an automatic sealing and filling mechanism, a packet receiving and vibrating conveyance mechanism and an automatic discharge conveying mechanism. The automatic sealing and filling mechanism is arranged above a filling area. The automatic material feeding mechanism is arranged above the automatic sealing and filling mechanism. The packet receiving and vibrating conveyance mechanism is arranged below the automatic sealing and filling mechanism. The automatic discharge conveying mechanism is arranged in front of the packet receiving and vibrating conveyance mechanism. By the adoption of the automatic ton bag supplying device and the automatic ton bag packaging system, automatic guiding in, opening, locating, filling, vibrating and discharging of ton bags are achieved, so that the supplying efficiency of the ton bags is improved, manual participation is not needed, the labor intensity of workers is lowered, the operation environment of the workers is improved, and safety accidents are prevented from happening.