Seismic shaking table is an important device performance test for high-rise buildings, nuclear reactors, marine structural engineering, bridge engineering and other important facilities. In order to increase the payload shaker, generally redundant parallel hydraulic drive mechanism was used for the shaker. The key problem of redundant driving hydraulic shaking table was to reduce the internal forces between each shaker. By means of the decomposition of the internal force space of a redundant driving parallel mechanism, a method of internal force feedback control was proposed that targeted at the exciter16 unit of the shaker. The establishment of simulation model for the Simulink shaking table and simulation are done， and the simulation results demonstrate the effectiveness of this method.