The invention provides a multi-purpose and self-sufficiency ecosphere
green building system, which is characterized in that a building structure is formed by vertically integrating a lower layer area, a middle layer area and an upper layer area at the same place, the lower layer area is a culture area and a culture pond which is arranged under the ground and can be used for culturing
aquatic organisms, and a filter pond, a biochemical pond and a water purification pond are arranged beside the culture pond; the middle area is a
residential area and is a building which is arranged above the culture pond and can be used for living; the upper layer area is a planting area and comprises a net room which is arranged above the building, is provided with a plurality of cultivation beds and is used for
insect prevention and sun shading; an
irrigation unit is combined between the lower layer area and the upper layer area, so that pond water in the culture pond passes through the filtering pond, the biochemical pond and the water purifying pond, then is conveyed to the
plant growing
bed for planting, and finally is output into the culture pond from the
plant growing
bed. By means of the operation, the energy-saving and carbon-reducing effects, ecological balance and resource reutilization are achieved, and the
living environment which consumes the least energy and produces organic non-toxic food is created.