Cleaning robot

The invention provides a cleaning robot. The cleaning robot comprises a robot body, a walking assembly and a mopping assembly. The mopping assembly has the state that the mopping assembly can stretch out of the outer edge of the robot body so as to clean the to-be-cleaned surface close to the edge of the obstacle, and when the mopping assembly at least bears the resistance of the obstacle on the front side, the mopping assembly can move forwards in the advancing direction of the cleaning robot and stretches out of the outer edge of the robot body. At least part of the structure of the mopping assembly passively moves towards the center line of the machine body. When the cleaning robot at least bears resistance in the front direction, the mopping assembly can passively move towards the outer edge of the robot body under the action of the resistance, namely, obstacle avoidance is achieved through movement of the mopping assembly, and hard impact between the mopping assembly and an obstacle is avoided; the situa