The purpose of this paper is to analyze the body structure of the scooter DIO50. The population density is high in Taiwan. The safety of the scooter body structure is especially important. Proe/ENGINEER CAD software is used to construct 3-D to create solid model, and then finite element analysis software ANSYS Workbench is combined to do the static and the modal analysis. In order to validate the finite element model, both 3-D solid finite element modal analysis and experimental modal analysis are made for comparison and verification. Verification shows that the experimental results and simulation ones are very consistent with each other. By changing the density of the material, the natural frequency will vary with it.