using cad technique, the author developed airborne, shipborne and trunk-mounted structural designing templates, created structural designing data base of airborne, shipborne and trunk-mounted electronic equipments and realized the parameterizing modular design . the typical experiment of a project indicated that the cad structural designing system is practical and it has been playing an important role in the structural design in the project 文中利用cad技术开发了机载、舰载、车载三种结构设计模板,编制了机载、舰载、车载电子设备结构设计资料库,并实现了机柜参数化模块设计,通过某项目设计定型试验表明,本cad结构设计系统是实用的,并在某项目的结构设计中发挥了重要作用。