Abstract: Because of the diversity and complexity of coal preparation equipment, troubles are likely to pop up or encountered in doing routine equipment safe operation patrol inspection work due to deficiencies of the work.In order to address the problems, the intelligent coal plant equipment patrol inspection system with the use of dynamic two-dimensional barcode and wireless indoor positioning techniques is successfully developed.The system can perform infrared temperature measuring, vibration sensing, picture taking, video display, recording and intelligent patrol inspection functions.By following the custom standard and through real-time collection of the IoT data of the equipment around the inspection points, the analog and digital quantities and observed information can be automatically processed and collected and then transmitted to the background computer via mobile phone APP, for timing personnel positioning (error:10 cm), Through practice of the integrated free inspection, leaders' inspection and routine inspection mode, once malfunction of equipment, if any, is found, the examination and approval proceduros for equipment repair/maintenance flowsheet are started, forming in this case a closed-loop management environment.Application of the intelligent system has led to improvement of inspection work and management level, and enables the inspection work to shift from the mode of setting up special work posts for doing inspection work with specialized personnel to the mode of making patrol inspection with specially-assigned personnel with no body on point duty.