Issues of food security and quality have been more important by years, following the food security storms has happened recently. Food industry plays a major role in this game. How to operate a policy of food security and work the policy efficiently inside the company has been discuss. At the same time, people are wondering that what is the 「Key Factor」to make sure the security and quality of food as product of internal control. The research is mainly about FAHP; Fuzzy Analytic Hierarchy Process. The main topic is exploring the relationship between management internal control and food security. The main conclusions of the Institute were as follows: 「Realize the Idea of Company 」and「Execute and Organize the Regulation」of these two are dimensions total weight value of 71% , Presently major food industries has struggled in the food security storms, those food industries, decision-making who should take FAHP as their first priority when they are making decisions.