Abstract: The present work is the first attempt in our country to seek an effective method for the treatment of detergent industrial wastewater. By using artificially prepared detergent industrial wastewater, it reveals that the tower biological filter can effectively overcome the foaming problem that cannot be solved by other general aerobic biological wastewater treatment methods, and it reduces the concentration of LAS and COD in wastewater to some extent. Owing to the positive results, this method has now been recommended to some detergent industries for future application. The dominant bacteria in the biological membrane of the filter have also been isolated and identified as Aeromonas sp. D-4.