请教，CST可以仿真obj格式模型吗？

CST仿真的不是什么格式的模型，由第三方软件创建的模型文件需要导入到CST中。
CST MWS帮助文件《CAD Data Import and Export Overview》：
Object File (File Import OBJ). This file format contains only triangulated approximations of the structure surfaces. The boolean manipulations of these objects may become very time consuming. In general, this file format should only be used for very simple structures or when no other format is available.