Abstract: According to the data mistakes, calculation error, reinspection and other problems caused by the artificial factors during the analysis process of the coal quality, an automatic processing system of a coal quality analysis process was designed.The RS485/422 to TCP/IP data transparent transmission technology was applie d to the interface of the system hardware. The calculation processing program was programmed and developed based on the GB/T 212- -2008 standard and other nation al standard mathematic formula and was applied to complete the automatic analysis and processing of the inspection data.The results showed that the original inspectio n data collection stage of the automatic processing system could reduce the mistaken probability occurred by the traditional method.The data analysis processing stage could be realized automatically and could improve the efficiency and timeliness.Meanwhile the system could have an excellent scalability and according to the demands of the coal quality inspection requirements, the inspection instrument terminals, soft and hardware interface program or mathematic formula model could be added sea mlessly.