NOVELTY - A sewage treatment of artificial wetland comprises absorbing nitrogen (N), carbon (C), and phosphorus (P) in sewage with roots of plants to remove part of N, chemical oxygen demand (COD), biochemical oxygen demand (BOD), and P; removing ammonia, organics, and P with nitrobacteria, aerobes and P accumulating bacteria; removing macromolecular organics with acidifying hydrolysis bacteria and hypoxic bacteria; and removing organic acid and micromolecular organics with methanol bacteria and anaerobes.    USE - Method of sewage treatment of artificial wetland (claimed).    ADVANTAGE - The method utilizes activated carbon filter layer installed in artificial tank to overcome poor plants and microbes at preliminary growth stage in wetland in treatment effect; and prevents unqualified to pollute environment.    DETAILED DESCRIPTION - A sewage treatment of artificial wetland comprises:    (A) removing a part nitrogen (N), carbon (C), and phosphorus (P) in sewage, building artificial tank, growing water plants in artificial tank to absorb N, C and P in sewage with roots of the plants, and removing part of N, COD, BOD and P;    (B) removing ammonia, part of organics, and part of COD, BOD and P after removing part of N, COD, BOD and P by water plants, placing first bacteria layer including nitrobacteria, aerobes, and phosphorus accumulating bacteria in artificial tank and converting ammonia in water into nitrate or nitrite with nitrobacteria in water, using aerobes to decompose part of organics in water into carbon dioxide (CO2) and water to remove part of COD and BOD, and using phosphorus accumulating bacteria to absorb phosphorus in water to form organism so as to finally form with calcium and iron in wetland stuffing layer into insoluble calcium phosphate and iron phosphate to attach on stuffing or among roots of plants;    (C) removing macromolecular organics and carbon element, placing second bacteria layer including facultative aerobes, acidifying hydrolysis bacteria, defoaming bacteria, denitrifying bacteria and third bacteria layer including hypoxic bacteria and denitrifying bacteria in the artificial tank, and converting macromolecular organics into micromolecular organics with acidifying hydrolysis bacteria and hypoxic bacteria to remove organics in sewage;and    (D) removing organic acid and micromolecular organics of simple molecules in sewage, placing bacteria layer (44) including methanol bacteria and anaerobes to decompose organic acid and micromolecular organics of simple molecules into methanol, CO2, and water to remove COD and BOD from water, discharging, and placing water exhausting pipe in artificial tank to discharge filtered sewage.    An INDEPENDENT CLAIM is included for a sewage treatment device for implementation of sewage treatment comprising artificial tank (1) with supporting layer (2) at the bottom; active carbon filter layer (3) installed above supporting layer for filtering and purifying water; bacteria layer (4) installed above active carbon filter layer to eliminate and decompose pollutants in sewage; wetland stuffing layer (8) installed between active carbon filter layer and bacteria later; and water exhausting pipes (10) in the artificial tank and at bottom of supporting layer.    DESCRIPTION OF DRAWING(S) - The drawing shows a cut-away view of the sewage treatment device for implementation of sewage treatment.    Artificial tank (1)    Supporting layer (2)    Active carbon filter layer (3)    Bacteria layer (4)    Wetland stuffing layer (8)    Water exhausting pipes (10)    Bacteria layer (44)