The invention discloses a pickling-cold-drawing machining production line for a steel pipe. The pickling-cold-drawing machining production line comprises a pickling tank, a hoisting machine and a cold-drawing machine. Clamping tools used for clamping the two ends of the steel pipe are arranged on the hoisting machine. The hoisting machine comprises a portal frame arranged above the pickling tank. A transversely-moving base is arranged on the portal frame. The clamping tools located at the two ends of the steel pipe are arranged on the transversely-moving base in a liftable mode. A conveying frame used for conveying the steel pipe is arranged on one side of a feeding frame. A hammerhead mechanism is arranged at the tail end of the conveying frame. The cold-drawing machine is located on one side of the hammerhead mechanism. An opening and closing air cylinder can drive a vice to be folded with a connecting position of a tong arm, so that the vice is controlled to be folded and make a pulling rod move towards a groove opening. Compared with the prior art, according to the pickling-cold-drawing machining production line, pickling and cold-drawing processes are connected, meanwhile, hammerhead working is completed in the process of steel pipe conveying, power of moving to a drafting base is supplied to the steel pipe, the machining efficiency is improved, and the labor cost is reduced.