Abstract: To evaluate the reliability of structural component under different work conditions, a reliability evaluation software is developed on the basis of finite element simulation results. The stress, strain and deformation analysis of the components under different work conditions are finished by ABAQUS software. The reliability evaluation model for the component is established based on the deformation through solidifying the finite element simulation analysis process by ABAQUS. The corresponding reliability evaluation software is developed with Python language and the reliability of component under different work conditions is calculated based on finite element simulation results. Moreover, the rule of the component reliability varying with the load is obtained. In this paper the technical framework and development environment of the software development are introduced, the software development process and functional modules are analyzed and the key techniques are described. Taking a radar component as an example, its reliability is evaluated and the effectiveness of the software is verified.