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For reference only, logistics is an important part of production management and on-site management and marketing, and it has become the third profit source of the company. Optimizing logistics system can reduce production costs and improve economic benefits and core competitiveness. For modern manufacturing enterprises, its internal logistics is the core of enterprise operation. With the development of global economy, the competition among enterprises is intensifying day by day, and the function and role of logistics are also strengthened. In order to meet the needs of modern production, logistics management has become more important. At this time, some traditional logistics management models and methods have shown some shortcomings, which have also become the bottleneck of the development of modern logistics management. Therefore, according to the concept of lean logistics, aiming at the actual process of manufacturing logistics, this paper puts forward a model of lean manufacturing internal logistics system, and combines with actual cases to find out the problems existing in this respect, solve the existing problems, eliminate the adverse effects, and finally improve the efficiency and quality of internal logistics management, and at the same time make the production process smoother, which is conducive to the maximization of enterprise value.