Research conclusions :(1) The computational model of variable stiffness diaphragm wall could be built based on the double - row pile load mode， and the analyses of bearing capacity and deformation property for the variable stiffness diaphragm wall could be carried out. (2) Computational results indicate that the lateral displacement of variable stiffness diaphragm wall is only 1/3 of that for the single - row diaphragm wall. (3) The single - row diaphragm wall has many shortcomings，such as low lateral stiffness， high and unevenly distributed stress in the wall body， but the variable stiffness diaphragm wall can effectively overcome these shortcomings. (4) The research results show the validity and rationality of the proposed method in this paper， which may provide good reference value for similar engineering analyses.