Sweeping device and garbage sweeper

A sweeping device and a garbage sweeper relate to the technical field of garbage sweeping. The cleaning device comprises a main brush and further comprises a bearing mechanism, and the bearing mechanism supports the main brush and enables the main brush to make proper contact with the ground in the working process so as to prevent the main brush from making excessive contact with the ground to cause excessive loss. When the sweeping device sinks, the bearing mechanism can replace the main brush to serve as a fulcrum to bear the weight of the garbage sweeper, the main brush is made to make appropriate contact with the ground in the working process, and the appropriate contact with the ground means that when the main brush can make contact with the ground, the main brush does not serve as the fulcrum to bear the weight of the garbage sweeper and can conduct sweeping normally. Unnecessary loss of the main brush can be reduced, and the service life of the main brush is prolonged. 清扫装置、垃圾清扫车，涉及垃圾清扫技术领域。清扫装置，包括主刷，还