Floor sweeping robot

The invention provides a floor sweeping robot which is designed to comprise a mother machine and a son machine. The son machine is in communication with the mother machine and is installed on the mother machine in a separable mode. The son machine and the mother machine can independently conduct sweeping after being separated. The size of the son machine is smaller than that of the mother machine. When the mother machine can not enter swept space, the son machine can be selected to leave the machine body of the mother machine and conduct sweeping, and therefore the sweeping task not capable of being completed by the mother machine is completed. The floor sweeping robot can be suitable for sweeping narrow space, meets practical requirements and improves the sweeping effect.