Ecological-base flooding oxygen pond sewage treatment system

The invention relates to the technical field of sewage treatment, and discloses an ecological-base flooding oxygen pond sewage treatment system which comprises a filter tank, a filter device is arranged in the filter tank, the filter device comprises a primary filter device and a secondary filter device, wherein one end of the primary filter device is communicated with a main sewage inlet; an adjusting tank which is communicated with the filtering tank through a first sewage pipe; an ecological base oxidation tank, wherein a first ecological base is arranged in the ecological base oxidation tank, and the ecological base oxidation tank is communicated with the adjusting pond through a first overflowing opening; a spherical ecological base rapid filter tank, wherein a second ecological base is arranged in the spherical ecological base rapid filter tank, and the spherical ecological base rapid filter tank is communicated with the ecological base oxidation tank through a second overflowing opening; and an oxygen