The wetland park is in the northeast corner of the intersection of the CBD Business Inner Ring Road and the North and South Canal. It is mainly used to purify the water quality in Ruyi Lake. The pump pumps Ruyi Lake water to the wetland park's water drop aeration pool. After the water drop aeration pool is oxygenated and ironed, it flows through the first-class biological pond, first-class gravel bed, Secondary bioponds and second-level gravel beds, through bioponds and gravel beds, after the nitrogen removal and dephosphorization, naturally flow back to Ruyi Lake.