The invention discloses an intermittent aeration and biochemical nitrogen and phosphorus removal treatment system. A catalytic oxidation tank of the device is filled with ozone catalysis particles inthe form of a fixed bed, and the ozone catalysis particles are prepared from, by weight, activated alumina particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol. Post-biochemical BAF tanks also include an anaerobic tank and an aerobiotic tank, a lower screening plate and an upper screening plate are installed at the lower portion and the upper portion of the aerobiotic tank respectively, a carrier is prepared from, by weight, high-density polyethylene resin, low-density polyethylene, bamboo charcoal powder, wood powder, lignin, methylene dichloride, diethyl guanidine sulfate, N,N'-ethylene bis-stearamide, maleic anhydride, dicumyl peroxide, gelatin, magnetic powder and pentaerythritol stearate. The intermittent aeration and biochemical nitrogen and phosphorusremoval treatment system achieves wastewater COD removal, decolorization, deodorization and degradation of toxic pollutants in the catalytic oxidation treatment process of sewage in the coal chemicalindustry.