Master-slave modular robot

The invention provides a master-slave modular robot in the technical field of electromechanical engineering, which comprises a plurality of robot units. Each robot unit is connected with four adjacent robot units respectively and comprises a triangular-prism master module, a triangular-prism slave module and two connecting modules, wherein one side face of the triangular-prism master module is fixedly connected with one side face of the triangular-prism slave module; the other side faces of the triangular-prism master module are connected with a connecting module; and the other two side faces of the triangular-prism slave module are connected with the connecting modules of adjacent robot units. The connecting modules used in the invention can rapidly realize reliable connection of the modules; and rapid assembly, replacement, maintenance and functional expansion of different robot modules can be realized by modularizing the robot modules, so the manufacturing cost is remarkably lowered.