Tao guibao Shao lixin Zhangjisheng (College of Mechanical Engineering, Chongqing University, Chongqing 400044) Abstract:On the quality management in workshop, this paper Discussed the problems of the quality control in many enterprises, such as the methods are behind its time, the efficiency is low. Proposed a kind of administrative system of quality based on three layers of structure model, described the systematic system structure and implementation method, and then explained emphatically the second layer unit structure of development of SPC multi-functional analysis instrument with integrated software and hardware based on ARM platform. Key words:Process quality control SPC unit Data collection and processing Network system