In the current competitive market environment, companies are facing multiple challenges such as cost control, product quality improvement and lead time reduction. The implementation of a lean manufacturing execution system (MES) can help companies to cope with these challenges. First, MES can monitor the production process in real time, identify potential production bottlenecks through data analysis, and help management make quick decisions to shorten the production cycle. Secondly, MES system can collect and analyze quality data, identify quality problems in time and implement improvement measures to reduce product failure rate. In addition, MES can also provide a wealth of production reports and analysis to help companies develop a more scientific production planning and resource allocation programs to reduce inventory costs and improve capital turnover. In summary, the implementation of MES can not only improve the production efficiency of enterprises, but also enhance market competitiveness, laying the foundation for sustainable development of enterprises.