NOVELTY - An ecological-artificial percolating water treatment system comprises an organic filler layer obtained by mixing peat soil, ceramic particles, and natural sand at volume ratio of 5.8-6.2:1:2.8-3.2, adding 1500-1800 earthworm/m2, and planting reeds at distance of 500 cm; capillary water blocking layer composed of crushed stone; water-saturated belt percolating layer composed of natural sand and roseite at volume ratio of 7:2.8-3.2; and support layer composed of crushed stone with 5-40 mm diameter.    USE - A system for ecological-artificial percolating water treatment of dispersed life sewage from high-speed road toll station, service construction, village and town.    ADVANTAGE - The system has little investment, simple management and maintenance, and stable water quality; and can effectively reduce building and operation cost of dispersed sewage treatment.    DETAILED DESCRIPTION - An ecological-artificial percolating water treatment system comprises four layers from upside to downside. The first layer is an organic filler layer having a thickness of 38-42 cm and obtained by mixing peat soil, ceramic particles with 2-3 mm diameter, natural sand with 1.5-2.0 mm diameter, where the volume ratio of peat soil, ceramic particles and natural sand is 5.8-6.2:1:2.8-3.2; adding 1500-1800 earthworm/m2; and planting reeds at distance of 500 cm. The second layer is a capillary water blocking layer having a thickness of 18-22 cm and composed of crushed stone with 5-30 mm diameter. The third layer is a water-saturated belt percolating layer having a thickness of 58-62 cm and composed of natural sand with 0.5-1.5 mm diameter and roseite with 2-4 mm diameter, where the volume ratio of natural sand to roseite is 7:2.8-3.2. The fourth layer is a support layer having thickness of 28-32 cm and composed of crushed stone with 5-40 mm diameter. An INDEPENDENT CLAIM is included for an ecological-artificial percolating water treatment method for dispersed life sewage comprising:    (A) after the large particle suspended substance in the life sewage is intercepted by the grid, making the sewage enter into the regulation tank and stabilizing water quality;    (B) opening the sewage lifting pump, pumping sewage in the regulation tank to distribute water for the ecological-artificial percolating water treatment system, where the water-distributing time is 110-120 minutes, and the water flow is 9.5-10.5 m3/hours;    (C) after finishing, closing the sewage lifting pump; and making the water treatment system enter into drying period, where the system is operated under condition that the wet-dry ratio of system is 1:3, the waterpower load is 1.5 m3/m2.day, and the drying time is 6-6.5 hours;    (D) finishing the drying period and directly draining the sewage; and    (E) re-opening the sewage lifting pump to distribute and circulate the water.