Accurate ecological green biological fixed reactor

The utility model discloses an accurate ecological green biological fixed reactor belongs to the sewage treatment field. Is accurate ecological green biological fixed reactor inside by including aeration equipment, packing layer, field snail frame on going in proper order plant dish and light source, wherein: the packing layer includes netted support layer, lower netted support layer and lies in go up netted layer and the down netted filler that holds in the palm between the layer of holding in the palm. The utility model discloses found the field snail plant cooperative system utilizes field snail water purification, reaches the nephelometric purpose that reduces sewage simultaneously, and plant metabolism can guarantee that the aquatic has higher oxygen concentration to maintain the normal growth of field snail, and the metabolism who utilizes deposit bacterium in the filler in plant and the sewage in with sewage the waste gas (waste gas such as CO2, NH3) of organic matter and production absorb and utilize,