With the huge increase in the number and scale of enterprises in China, more and more enterprises carry out high-quality management in order to make enterprises survive and develop better. As the core content of enterprises at present, inventory management has caused extensive discussion. The traditional enterprise inventory management model can no longer meet the needs of modern inventory management, but there are still many problems in using Internet inventory management model to carry out enterprise inventory management. Based on practical work and combined with practical experience, this paper puts forward the problems existing in the inventory management of internship enterprises under the Internet mode, including four major problems: "high technical risk of inventory management, poor function of inventory management system, slow information construction of inventory management and excessive dependence on system software", and then discusses the positive influence of the current Internet mode on enterprise inventory management. It has four advantages: making inventory management more accurate, making inventory management smarter, making inventory management cost lower and making inventory use more efficient. Finally, by proposing "improving the inventory management in manufacturing, logistics, purchasing and sales under the Internet mode", some countermeasures are put forward for enterprises that adopt the Internet mode for inventory management, hoping to improve the inventory management under the Internet mode.