Microorganism self-digestion type toilet sewage treatment system

The utility model discloses a microorganism self-digestion type toilet sewage treatment system which comprises a microorganism digestion reaction tank, and the interior of the microorganism digestion reaction tank is sequentially divided into a first reaction tank, a second reaction tank, a third reaction tank, a fourth reaction tank and a fifth reaction tank through longitudinal partition plates. A sewage inlet is communicated with the side wall above the first reaction tank, an aeration overflow pipe is connected between the third reaction tank and the fourth reaction tank, and an internal aeration pipe is arranged in the fourth reaction tank; a filtering permeable membrane is arranged at the bottom of the fifth reaction tank. After being discharged into the treatment system, toilet sewage is firstly subjected to digestion reaction in the digestion tank, then is subjected to filtration, decoloration and sterilization treatment, is internally stored and is recycled in a toilet, so that the dependence on an e