Replacing the mop bracket of the sweeping robot can reduce the machine loss. Loose bracket and stuck mop will increase the motor load of the robot, which will run more smoothly after replacement, reduce the failure probability and prolong the service life of the sweeping robot. Reducing the cleaning cost and replacing it in time can avoid the machine failure maintenance caused by mop damage and bracket damage, and it is unnecessary to replace the whole machine frequently, which saves money in the long run. Improve the uniformity of mopping, replace the mop with stronger water absorption and dirt locking ability, and stabilize the bracket to ensure that the mop sticks to the ground, avoid missing and heavy mopping, and clean and cover more comprehensively. Noise interference is reduced, and abnormal noise is easily generated when the worn bracket is loose. After replacement, the bracket fits tightly and runs smoothly, and the mop can reduce the working noise of the robot and make it quieter. The adaptability is better, and the mop cloth and the bracket fit the robot model, so as to avoid falling off and shifting caused by abrasion, ensure the stability of the mopping process and not affect the normal navigation of the robot.