The invention discloses a continuous feeding system comprises a single arm feeding device and a feeding machine. The top of the single arm feeding device is provided with a ball screw rod lifting machine. A linear guide rail is connected below the ball screw rod lifting machine and provided with a linear guide rail sliding block which is connected with a sliding block fixing plate. A suspension arm beam is welded on the sliding block fixing plate. Two shoveling forks are arranged on the suspension arm beam side by side. The bottom of the single arm feeding device is provided with a decelerator. A transmission gear is arranged below the decelerator. The bottoms of two lateral surfaces of the single arm feeding device are provided with linear rail sliding blocks. One side of the feeding machine is provided with linear rails which are positioned on a base. The single arm feeding device is arranged on the linear rails with the assistance of the rail sliding blocks. A tapped iron conveyingdevice, a swing suction gun, a connecting rod, an iron skin sensing switch, an iron stacking baffle, a first conveying roller path and a lifting platform are arranged in the feeding machine. A secondconveying roller path is connected outside the first conveying roller path. The continuous feeding system has the advantages of simple structure, time and energy saving and work efficiency improvement.