Abstract: In view of the problems of production safety and equipment operation monitoring of fully-mechanized mining face in underground coal mine, a flexible track inspection robot system for fully-mechanized face was designed.Composition of robot system was introduced, and design methods of inspection robot body, base station and remote workstation were discussed respectively. The flexible track composition and structure design suitable for narrow space and multi-curvature of the working surface were expounded. Finally, the control software design method of the inspection robot system such as a multi-robot cooperation method was introduced. The research shows that the inspection robot system has complete monitoring functions and strong adaptability, which solves the production monitoring problem under complicated working conditions in the limited space of coal mine working face.