In　order　solve　the　problem　that　traditional　wastewater　treatment　process　can＇t　treat　contraceptive　wastewater　well.　10　superior　strains　that　degrades　contraceptive　wastewater　was　isolated　from　activated　sludge　of　wastewater　treatment　plant　treating　wastewater　from　contraceptive　medicine　factory.　Based　on　its　morphology　and　16S　rDNA　sequence　analysis,　these　bacteria　was　identified　as　5　strains　that　Pseudomonas　aeruginosa,　Brevibacillus　parabrevis,　Acinetobacter　lwoffii,　Acinetobacter　baumannii,　Brevibacillus　brevis.　The　studied　result　showed　that　superior　strains　could　reduce　the　density　of　bio-cultures　and　degradation　time,　which　made　θCOD　was　87.5%　with　ρMLSS　=　2000　mg/L　in　4　hours.　The　superior　strains　also　made　NH3-N　and　TIN　match　the　wastewater　discharge　standard,　which　couldn＇t　come　true　depending　on　simple　microbial　cultures.　At　the　same　time,　the　fact　was　indicated　by　this　experiment　that　the　effect　of　treating　contaminant　by　superior　microbial　cultures　was　better　than　simple　microbial　cultures　during　the　variation　of　pH　and　temperature.