Abstract It is a goal expected by designers of spinning roller bases to decrease copying error and energy consum ption． The authore analyzed the m otion and the work of spinning roller bases and established two goal functions about copying error and energy consumption，and the binding conditions about strength，stability，specific pressure on guide-way and connected dimensions；obrained the m ethod optim izating spinning roller bases with tow goals and the optim um param eters of the spinning roller base in the factual example；the optimizatiing method can achieve better resuit and has wide applicable field．
