The guide robot includes a case having a coupling hole and a door type display structure that is capable of opening or closing the coupling hole. Access to the body part in which main electrical components are provided may be easy. An installation plate coupled to a main frame, a slide guide and a guide plate, which are coupled to the installation plate, and a plurality of link type coupling devices coupled to one side of the guide plate and connected to the display unit may be provided to open or close the coupling hole by rotating the display unit after the display unit slidably moves.