Abstract: Based on the purchase price increasing exponentially with time and twolevel stockdependent selling rate, an EOQ model is generated. The influence on ordering strategy is analyzed when agricultural and food prices increase greatly by actual survey data. The sensitivity analysis shows that the initial purchase price and purchase price factor have greater impact on ordering strategy and inventory cost than the others, while stockdependent selling rate factor and stockdependent selling point have certain influence on ordering strategy and inventory cost.