In the process of load disturbance, the traditional electronic virtual lineshafting control strategy had a great error in the speed and position of motors due to the time lag of the virtual elastic torque feedback, which leads to the decrease of the quality of the produce. Aiming at this problem, It proposes an improved ELS control strategy. In this strategy, the sliding mode observer is designed to load torque, the observed load torque feedback to the virtual machine and feedforward compensation in realtime; in order to reduce the position error of motors, the integral term is introduced in the virtual machine unit. Simulation results show that the improved ELS can improve the ability of paper transmission unit to deal with the load change, and effectively reduce the speed and position synchronization error of motors, and has a certain practical value.