Abstract: This article describes how to decide the reasonable stocks in the enterprise inventory management. According to the stochastic stock model, it uses queuing theory to determine the optimal stock and discusses how to decide the queuing model in details. It also adopts the classical stochastic inventory theory to determine the safety stock and combines the queuing theory with inventory theory well to make the stock get the optimal control.

Key words: inventory control, optimal stock, safety stock, queuing theory, stochastic inventory theory