ABSTRACT
Because of the interaction of the global market ，the logistics industry is becoming more competitive, product life cycles is becoming more and shorter, product is increasing variety. In the logistics supply chain, the supply and demand imbalance is very prominent, because of demand uncertainty increase .A serious backlog of inventory and product shortages existed, the resulting is that the increase of operating costs reduces the profits of the industry and performance. How to enhance profitability and competitiveness of enterprises by good balance of supply and inventory management is the logistics pressing problem.
In this paper, the company's products Shangyu B stock as the research object, First analysis of the B status of the company stock, with Flexsim simulation software, find the problem, Then, according to the company Recently upward trend since the volume of business, to improve the existing inventory system optimization Through Flexsim to find a method to maximize storage utilization, lower inventory costs, enhance the overall competitiveness
These results not only ask for improving the management level of stock company B, reduce the cost and improve the supply chain reaction speed and flexibility, to improve the capital turnover ,returns and improve the market competitive is very important to the other company which has the similar types of company B.
KEYWORDS：Inventory systems, Storage optimization, Flexsim, System simulation
