Abstract: With the development of industrial system towards intelligent direction, the traditional industrial log system is unable to meet the needs. In order to improve the real-time performance of log collection, the efficiency of log processing and the reliability of log storage, an automatic, intelligent and visual log system for industrial CPS is designed and implemented. The log system consists of five subsystems, which are the log collection subsystem responsible for log collection, the collection task scheduling subsystem responsible for allocating collection tasks and monitoring the status of collection tools, the data synchronization subsystem responsible for real-time synchronization of log data, the foreground subsystem responsible for interacting with users, and the background subsystem responsible for processing user interaction data.