Aiming at the problem of multiple mould parts reaching the EDM processing link at the same time in the production process of the automatic mould processing line,a method of calculating the program completion progress rate of the electrode and real-time monitoring the CNC machining progress of the mould electrode was proposed.Using FOCAS technology and C# language to call FOCAS related functions,the related functions were used to download NC programs and collect data such as the number of completed program lines for FANUC system 0i series CNC machine tools.Based on the collected data,a SQL Server database was established to store the data in time.Combined with the constraints in the automatic line process,a priority calculation scheme for mould parts processing was proposed.The MES system database and SQL Server database were connected to obtain relevant data.Through comparing the number of EDM machine tool,electrode completion rate,schedule rate of electrode process,the relevant data was bubbled and sorted to determine the priority number of mould parts,thereby setting the order of mould parts processing.Finally,the feasibility of the scheme was verified in a mould enterprise and good application results were obtained.