In recent years, due to global warming and the emissions of industrial waste water, the wetlands in downstream of the Mississippi River in the United States have been greatly reduced, causing a threat to the local natural ecosystem and fish catch by fishermen have also decreased seriously.However, the mangroves which are special species of wetlands, can provide benthic fry, also prevent floods and filter out river pollution. Therefore, we hope through educational micro-buildings, the importance of wetlands will be called on and Mangroves play the role in this wetland.We use the wastewater from the closure of the factory to the filtered micro-architectural demonstration area, where people come and slide a small boat from a nearby camping area to observe the ecological impact of clean water, to visit the gravel purification observation corridor, to go through the beauty of mangroves and to snoop on the traces of birds. Through here, People understand the importance of wetland conservation as well.