Automobile　industrial　wastewater　contains　high　COD,　which　is　complex　and　poor　in　biodegradability.　Separated　pre-treatment,　coagulating　sedimentation,　biochemical　treatment　and　advanced　treatment　were　applied　to　treat　Automobile　industrial　wastewater　in　this　design.　When　pH　value　is　in　the　range　of　nine　to　ten,　it　is　the　optimum　condition　to　get　rid　of　heavy　metals.　Three-stage-dephosphorizing　technique　was　taken　to　remove　phosphor.　Activated　sludge　system　has　longer　sludge　age　to　remove　the　organic　matter　and　the　water　from　the　sewage　processing　station　can　reach　the　standard　of　first　discharge　standard　of　comprehensive　wastewater　discharge　standard　(GB8978-96).　The　removal　rate　of　COD　is　more　than　40　percent.　©　2011　IEEE.