Si Chuan Gaoda Science & Technology Co., ltd (abbreviated Gaoda Science & Technology), is a limited company which based on the previous Gaoda measure and control company of SiChuan Science city and invested and set up together by the institute for computer application ,which belongs to China academy of engineering physics(abbreviated CAEP), and “two management financial centers” of Mianyang government . The CAEP is a comprehensive science research institute which mainly based on theory, experiment, design and produce of developing national defense’s tip science technology.The whole institute owns twelve science research production entity and five important lab of national defense science and technology.