Urban high-density built-up area lake-pond wetland system based on split system

The utility model provides an urban high-density built-up area lake-pond wetland system based on a split-flow system. The urban high-density built-up area lake-pond wetland system comprises a multi-path water inlet system, a purifying system, a repairing system and a water supplementing system which are sequentially arranged in the water flow direction, the multi-way water inlet system comprises a sponge field rainwater confluence area, a split-flow high-density built-up area and a sewage treatment plant which are located on the periphery of a lake and pond, and the multi-way water inlet system is used for providing stable and continuous water supply for urban lake and pond wetlands. The purification system is used for purifying water from the multi-path water inlet system; the remediation system is used for carrying out remediation treatment on the ecological environment in the wetland of the lake pond by combining the effluent of the purification system; and the water supplementing system is positioned at a