Abstract: Only a tension feedback closed loop controller cannot meet the requirements of the speed synchronizing between hydraulic-tension cylinder and workpiece and keeping the stable tension at the same time for hydraulic-tension reversible experimental cold mill. To solve the problem, a new combined control technique was proposed by combining a speed feedforward controller with a tension feedback controller. The feedforward controller computes the setting flux according to the setting rolling speed, and then computes the opening scale of servo valve. The feedback controller uses a PI controller to compute the opening scale of servo valve. The outputs of feedforward and feedback controller were summed as the total opening scale of servo valve. The proposed technique was applied successfully in a 450 mm hydraulic-tension experimental cold mill.