Swarm robot and sweeping method using swarm robot

PURPOSE: A swarm robot and a method for searching using the same are provided to maximize productivity of a stick removal work by removing sticks placed on unknown areas through cooperative operation of robots. CONSTITUTION: A swarm robot(100) comprises a driving unit(110), a manipulating unit(120), a sensing unit(130), a position checking unit(140), and a control unit(150). The driving unit moves in a sweep area. The manipulating unit grips an object. The sensing unit senses environmental information of the sweep area. The position checking unit grasps the position of a robot within the sweep area. The control unit makes a local map and an object map using the environmental information of the sensing unit and the position information of the position checking unit, and controls the driving unit and the manipulating unit in order that the robot moves to the object according to the local map and the object map and removes the object.