The invention discloses a wind power generation advertising board for a sponge city. The wind power generation advertising board comprises a stand column, the stand column is slidably sleeved with a mounting block, two magnetic rings are welded to the side wall of the mounting block, a bearing is arranged in the side wall of the mounting block in an interference fit mode, a connecting block is welded to the side wall of the bearing, the bearing and the connecting block are located between the two magnetic rings, an advertising board is welded to the side wall of the side, away from the bearing, of the connecting block, a power generation device is arranged on the connecting block, and a water storage and spraying device is arranged in the mounting block. The advertising board has the advantages that the advertising board can rotate under wind power to generate electricity, wind energy is effectively utilized, meanwhile, the attention of pedestrians is better attracted through rotation, advertising content can be seen in all directions, the advertising effect is better, the height is automatically lowered for self-protection when the wind power is large, the advertising board is prevented from being damaged by strong wind, meanwhile, rainwater can be collected and reused, and the construction concept of a sponge city is better met.