The invention discloses a production order management system based on a 5G network, which comprises an enterprise management layer and a workshop production control layer, and is characterized in thatthe enterprise management layer converts a sales order into a production order and associates the production order with equipment, personnel and material data information stored in a data server so as to issue a task instruction to the workshop production control layer; the workshop production control layer collects real-time data of equipment, personnel and production, communicates with the enterprise management layer in real time through a 5G wireless network, receives an instruction and controls production; the order management server obtains the number, specification, quality and progressof produced products through the workshop production controller, compares the number, specification, quality and progress with a production order, judges whether a production task is completed or not, and correspondingly sends out production stopping, work order modifying, deviation correcting, personnel allocating and material adjusting instructions. According to the invention, the intelligent degree of enterprise management is improved, seamless connection between a production order and a workshop production plan is realized, and the effectiveness and scientificity of management are improved.