Enhanced nitrogen and phosphorus removal integrated constructed wetland system

The invention discloses an enhanced nitrogen and phosphorous removal integrated constructed wetland system. The system is a surface flow wetland, and comprises an emergent aquatic plant wetland (1) and a submerged plant wetland (2) which are sequentially arranged along the water flow direction, wherein the emergent aquatic plant wetland (1) comprises an enhanced nitrogen removal medium layer and a shallow-water surface (3) arranged at the upper part of the enhanced nitrogen removal medium layer; emergent aquatic plants (4) are planted in the enhanced nitrogen removal medium layer; the submerged plant wetland (4) comprises an enhanced phosphorous removal medium layer and a deep-water layer (6) arranged at the upper part of the enhanced phosphorous removal medium layer; and submerged plants (5) are planted in the enhanced phosphorous removal medium layer. The enhanced nitrogen and phosphorous removal integrated constructed wetland system can be used for realizing sewage treatment synchronously, efficiently and economically.