The invention relates to a bolt fastener automation hardness test, screening and packaging system. The system comprises a feeding device, a transmission device, an eddy current hardness detection and analysis device, an imaging screening and defect analysis device, a sorting device, an automatic packaging device and a controller. The system is characterized in that the controller is connected with the feeding device, transmission device, eddy current hardness detection device, imaging screening and defect analysis device, sorting device and automatic packaging device respectively; the transmission device comprises a frame, a linear conveying mechanism installed on the frame, and a transparent glass inclined plate used for conveying and projecting the pieces to be detected; the eddy current hardness detection device includes an eddy current probe and an eddy current controller; and the image screening and defect analysis device comprises a side-vision detection camera, and an upper-vision detection camera. The technical scheme has the advantages of simple structure, no need of artificial inversion, no need to arrange again, improved detection efficiency, wide application range, reduced corresponding screening equipment, and reduced cost.