By means of computer-aided analysis, the structural mechanical strength of laminated bent-wood chair, which represents the mainstream product of contemporary furniture design, has been analysed, and the mechanical properties prediction and optimization design model of laminated bent-wood chair are constructed; the theoretical basis and method for the application of finite element method in the design and manufacture of laminated bent-wood chair are considered, and the optimum design for the structure and strength design of curved-surface furniture is discussed. Research shows that this study will effectively reduce the raw materials and production costs consumed in the development and utilization of new furniture products, shorten research and development cycle, improve labour productivity, and provide new test and methodology for furniture design and manufacturing industry.