The study concentrated on a radial telescopic-type tire building drum, analyzed the frameworks and working principle. Make motion analysis and dynamic analysis for the frameworks, research the relations of speed, acceleration between them, and analysis the mechanical efficiency of them. Determine the main parameters that affect the motion and force transmission characteristics of the mechanism. On this basis, we optimize the parameters and make of general guidelines for preferences and design. Using the software SolidWorks to make three-dimensional entity modeling, assembling and motion simulation. By the check analysis of the software, improve and optimize the design.