Concerning the fluctuation of accumulator tension and frequent deviation of strip in Pangang Cold Rolling Mill Factory’s PL-TCM, which limited the set quantity production and badly affected production of the unit. a research has been made on the accumulator tension control system. It states the accumulator static tension setting and dynamic torque compensation algorithms. Besides, the relevant calculation formula is also provided. Through optimization by adopting optimal correction limiting and speed difference torque compensation in the step of accumulator tension control, problems such as the fluctuation of accumulator tension and deviation of strip are solved, which meets the requirements of accumulator tension and set quantity for production process.