The study data to reduce the amount of waste department of the company. Central Food Retail Co., Ltd., researches, this time the main objective is to learn about the product and to be efficient in order and to collect data and reduces the amount and cost of waste each week. It also needs to give consumers more efficiently and effectively according to the study, this research report for primary data from different sources. The relevant information from the company, the study was conducted by a group purchase of each product category. View each week and concluded that the loss has decreased or not. To advantages that this research has more or less effective. And can determine whether the preliminary research in a nascent discontent of area director. And branch managers to head the department. Which had been planned to help drain the Woodstock merchandise to avoid its overflow Woodstock. And to achieve the performance to make the most of each day. And also to reduce the depletion indications to check the goods. And contribute to the implementation of the order in the wrong category. Maximum number of store after store. Then to resolve and find solutions to shrink. Expired Products Products damaged The stolen goods too.