Abstract: Coal mine heavy-duty operation robot is an intelligent equipment to replace workers in high-risk positions, which faces challenges such as narrow working space and complex and changeable working environment. Current situations of heavy-duty industrial robots were summarized as well as development history of coal mine roadway repair equipment. It was pointed out that existing coal mine roadway repair equipment could only realize functions of remote control and automatic roll-cable with low intelligence level, and heavy-duty operation robot for coal mine roadway repair should be developed. The concept and functional localization of heavy-duty operation robot for coal mine roadway repair were put forward, and many key technical problems which needed to be solved were pointed out, such as accurate position and attitude perception in narrow and enclosed roadway space, walking path planning and control, operation trajectory planning and motion control, etc. Development directions of heavy-duty operation robot for coal mine roadway repair were expounded, which were improving its reliability, stability and intelligence level, and strengthening construction technique matching with other robots.