Abstract: Aiming at the processing demands for automation, high quality, high efficiency of complex curved surface parts in national strategic fields such as aviation, energy, transportation and military, the research and application progress of key technologies and integrated systems in industrial robot grinding and polishing process was comprehensively reviewed in recent years, both domestically and internationally. Firstly, the research achievement of complex surface robot grinding and polishing technology was summarized from multiple perspectives, such as grinding and polishing mechanism, process optimization, trajectory planning, grinding force control. Secondly, the application progress of robotic grinding and polishing integration systems at home and abroad was introduced. Finally, the main problems and development trends of complex surface robot grinding and polishing technology were analyzed and provided important guidance and direction for the development of this technology. The research results indicate that the main problems with this technology currently include unclear grinding and polishing mechanisms, inaccurate mathematical models, low efficiency in planning the grinding and polishing trajectory and insufficient precision in controlling grinding and polishing force. The future research directions are prospected from the aspects of process parameters model, hybrid control of robot force and position, highprecision calibration of robots and error compensation, integrated design and motion control of robot systems, online monitoring based on digital twins technology, segmented application scenarios of robot grinding and polishing technology. The research and practice in the above aspects will greatly promote the development and application of robot grinding and polishing technology.
Key words:  development trends; grinding and polishing robot; complex curved surface parts; optimization of grinding and polishing process parameters; online monitoring of grinding and polishing; high precision calibration and error compensation; grinding force control; trajectory planning of grinding and polishing