The embodiment of the invention provides a robot which comprises a controller, a chassis and an obstacle avoiding device, wherein the chassis is away from the ground for a preset height; the obstacle avoiding device comprises a pressing structure and a switch circuit; the switch circuit is corresponding to the pressing structure; the switch circuit comprises a switch; an output end of the switch circuit is connected with the controller; the controller and the switch circuit are arranged in an inner cavity of the robot; when the pressing structure is not pressed, the switch circuit is under a disconnected state; when the pressing structure is pressed, the switch circuit is under a connected state; the switch circuit is used for outputting a preset control signal to the controller; a plurality of grooves are arranged on an outer wall of the chassis at intervals; each of the grooves is used for accommodating one pressing structure; a lateral surface of the pressing structure is protruded from the lateral surface of the outer wall of the chassis. The obstacle avoiding device is arranged on the chassis of the robot, so that the obstacle close to the ground can be conveniently and accurately detected.