Lean production is a management philosophy that aims to increase production efficiency, reduce waste, and improve product quality. In the forging industry, the following are some of the ways lean production can be applied to help improve efficiency and reduce waste: Continuous improvement: Lean production emphasizes the thinking of continuous improvement, through the continuous analysis and optimization of the production process, looking for opportunities for improvement. In forgings production, tools such as value stream mapping, 5S sorting, and continuous improvement activities such as Kaizen can be used to identify and resolve problems to improve efficiency. Integrated production: Lean production advocates closely linking the production processes of each link to reduce waiting and transfer time to speed up the production cycle. In the forging industry, unnecessary downtime and waiting time can be reduced by making reasonable production plans, optimizing equipment configuration and personnel arrangements, and improving overall production efficiency. Small batch production: Lean production emphasizes small batch and fast delivery, avoiding overproduction and inventory overstocking. In the forging industry, metronomic production, flexible production line layout and material supply strategy can be used to meet customer needs and avoid overproduction and waste of resources. Quality control: Lean production focuses on the improvement of quality and the maintenance of consistency. In the forging industry, quality control in the production process can be ensured by implementing a strict quality management system, developing standard operating procedures and automated testing, reducing the rate of defective products and heavy industry, and improving product quality. Cultivate employee participation: Lean production emphasizes employee participation and creativity. In the forgings industry, training and education can enhance employees’ awareness of quality and efficiency, encourage them to propose improvements, and participate in problem solving and process optimization, thus forming a lean production culture with full participation. By applying the principles and tools of lean manufacturing, the forging industry can increase production efficiency, reduce waste, use resources efficiently, provide higher quality products, and improve customer satisfaction.