This article takes the six story frame structure adding different stiffness wall as the analysis object. The effects of adding the rocking wall and the wall stiffness variation on the structure internal force distribution and the changing rule are studied. From the analysis results it is concluded that:when the interlayer stiffness of the framework is uneven, it has great influence on the internal force distribution of rocking wall and the force of the structure. The shear force and the bending moment of the rocking wall increase with the increasing of earthquake intensity and stiffness ratio. With the addition of the rocking wall, the seismic effect of the frame part decreases, and the emergence of the weak layer is prevented.