The invention discloses a manufacturing execution system which comprises a production planning and scheduling system, wherein a manufacturing execution system is integrated on the basis of the production planning and scheduling system. The manufacturing execution system comprises a basic material module, a document management module, a personnel management module, an equipment management module, a material management module, a die management module, a quality management module, a data acquisition module, a real-time monitoring module and a real-time reporting module. An upper layer of the manufacturing execution system is integrated with an ERP (Enterprise Resource Planning) system of an enterprise, and a bottom layer of the manufacturing execution system is connected with a data acquisition device and a man-machine interaction terminal interface in a product field. According to the manufacturing execution system provided by the invention, the problem of real-time material demand information in the production field of the discrete manufacturing industry is solved, the material demand information can be timely sent to a warehouse by automatic system triggering or manual triggering, and the problems of monitoring and feeding back the efficiency of production equipment in real time are solved by the scientifically planned OEE (Overall Equipment Efficiency) management.