A robot cleanner

The present invention relates to a robot cleaner. In this embodiment, in the plurality of the robot cleaner to suck the sensor and the foreign material of the cleaning area while traveling avoid the obstacle by using a suction motor, the base for forming the body bottom to prevent exceeding the obstacle a certain height of the traveling obstacle of the height and the travel limiting interfering portion is characterized in that integrally formed on the base. This, according to this embodiment, even when a malfunction of the sensor for detecting the threshold of the robot cleaner is detected enables the threshold has the advantage of improving the driving stability of the robot cleaner.