With the continuous development of the electronic industry, the rapid development of the field of the electronic industry, at the same time, compared with the previous electronic case is more and more extensive, so that the appropriate understanding of the chassis cabinet knowledge for the need of sheet metal chassis shell is very important. As the main content of electronic equipment structure design, chassis has become a very important link to achieve equipment technical indicators. In the electronic case design we modular, miniaturization and modeling design concept to complete the standard criteria.