Abstract: The inserted wallboard light moving house is widely used at present. In this study, the three-dimensional finite element analysis of a typical moving house is performed. In particular, based on the analysis of the cooperative principle between the insert wallboard and frame, a step-by-step superposition method of considering the lateral resistance effect of inserted wallboard is developed. Therefore, the safety and reliability of the structure can be further ensured when the project budget is limited. The results show that the global force deformation performance of a light moving house is greatly improved after the wall panels are inserted, whereas the size of the installation gap greatly affects the structure stress. Therefore, accurate installations of a light moving house must be ensured when more economical member sections are employed to make the wallboard provide expected lateral resistance.