The invention discloses a production line for high-ductility cold-rolled ribbed bars. The production line comprises a descaling machine, a rolling unit, an intermediate-frequency heat treatment device, a flying shear and a tilting gear which are connected in sequence, wherein a butt welding machine is arranged at the front end of the descaling machine; the intermediate-frequency heat treatment device comprises a cooling water circulating pipeline, an intermediate-frequency working cabinet, a first heating source located at the front end of the intermediate-frequency working cabinet and a second heating source located at the rear end of the intermediate-frequency working cabinet; the cooling water circulating pipeline is respectively connected with the first heating source, the second heating source and the intermediate-frequency working cabinet; the flying shear is connected with a material conveying chute of the tilting gear through a guide groove; and a packing cart is arranged at the outer side of the material conveying chute of the tilting gear. The cold-rolled ribbed bars produced by the production line disclosed by the invention have good ductility; and on the premise of guaranteeing the strength, the elongation of the cold-rolled ribbed bars is remarkably improved, and the popularization and the application of the cold-rolled ribbed bars are facilitated. Besides, according to the production line disclosed by the invention, cold rolling, annealing, cutting-off and material receiving are integrated, all production steps are finished at one time, all-weather non-stop work can be realized, the production efficiency can be significantly improved, and the production cost is reduced.