NOVELTY - Sewage treatment plant of economical cyclic reduction bio-fungus system comprises excrement receiver (1); fungus bed container composition (2) where its parts are placed for fungus bed-biological film (2-a) of Paramecium and Aspidisca, for fungus bed-biological film (2-b) of Epistylis, or for fungus bed-biological film (2-c) of Opercularia; overflow orifice (5); bio-reduction treatment tank (3); carbon treatment absorption bag (8); storing tank for clean water (4); air exit holes (6); and timing cyclic waste pump (7).    USE - The sewage treatment plant of economical cyclic reduction bio-fungus system is useful for cleaning and recycling water.    ADVANTAGE - The plant has simple manufacturing and using, and sets the volume of the whole toilet according to the number of people and the amount of the treating urine/stool.    DETAILED DESCRIPTION - A sewage treatment plant of economical cyclic reduction bio-fungus system comprises an excrement receiver (1) connected with the toilet, a fungus bed container composition (2) connected with the excrement receiver (1) through pipeline, three quarters of the front part of the fungus bed container composition (2) is placed for fungus bed-biological film (2-a) of Paramecium and Aspidisca, three quarters of the middle part of the fungus bed container composition (2) is placed for fungus bed-biological film (2-b) of Epistylis, three quarters of the back part of the fungus bed container composition (2) is placed for fungus bed-biological film (2-c) of Opercularia, an overflow orifice (5) is provided on the upper part for each part, the treated waste is over-flown to the next part through the overflow orifice, the fungus bed container composition (2) is connected with the bio-reduction treatment tank (3) through pipeline, a carbon treatment absorption bag (8) is placed in the bio-reduction treatment tank (3), the bio-reduction treatment tank (3) is connected with the storing tank for clean water (4), the tops of the fungus bed-biological film (2-a) of Paramecium and Aspidisca, fungus bed-biological film (2-b) and fungus bed-biological film (2-c) of Opercularia are arranged with air exit holes (6), connected with the exhaust pipe to the outside, a timing cyclic waste pump (7) is arranged the fungus bed-biological film (2-c) of Opercularia and the fungus bed-biological film (2-a) of Paramecium and Aspidisca, for pumping the solid matters non-treated in the fungus bed-biological film (2-c) of Opercularia in the fungus bed-biological film (2-a) of Paramecium and Aspidisca to repeatedly treat timely, and the clean water in the storing tank for clean water (4) is pumped in the water tank for flushing the stool to reuse with a pump.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the sewage treatment plant of economical cyclic reduction bio-fungus system.    Excrement receiver (1)    Fungus bed container composition (2)    Bio-reduction treatment tank (3)    Storing tank for clean water (4)    Overflow orifice (5)