NOVELTY - A strain capable of denitrifying phosphorus and nitrogen removal, is new. The strain is facultative bacteria which are capable of growing under both anaerobic and aerobic conditions.    USE - The strain is useful for denitrifying phosphorus and removing nitrogen. The strain is used in combination with filtration devices for preventing water eutrophication (all claimed).    ADVANTAGE - The strain, preferably bacterial strain, enables large-scale production of strain by fed-batch fermentation, has good alkali-resistance property, consumes less time for denitrifying phosphorus and nitrogen removal, and exhibits chemical oxygen demand (COD)cr and biochemical oxygen demand (BOD)5 of 70% and 78%, respectively, and removal rate of ammonia, total phosphorus (TP) and total nitrogen (TN) of 84%, 74% and 82%, respectively.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for screening and culturing the strain capable of denitrifying phosphorus and nitrogen removal, which involves (a) collecting activated sludge and wastewater sample from printing and dyeing wastewater in aeration tank, where the collected activated sludge and wastewater sample is a source for the strain, (b) isolating bacterial strain capable of denitrifying phosphorus and nitrogen removal, performing dilution plate technique and streak plate technique, inoculating the bacterial strain in slant culture medium, separating vessels and water, and autoclaving the vessels and water, (c) inoculating the bacterial strain in wastewater comprising high concentration of nitrogen and phosphorus, shaking culture for proliferation of bacterial strain, simultaneously maintaining suitable conditions for preventing elimination of nitrogen and phosphorus, gradually increasing concentration of nitrogen and phosphorus, and domesticating the bacterial strain with improved tolerance for degradation of nitrogen and phosphorus, and (d) preparing gradient plate culture medium comprising various concentration of nitrogen and phosphorus, inoculating domesticated bacterial strain in the gradient plate medium, selecting and screening bacterial colonies that grows in the medium comprising high concentration of nitrogen and phosphorus, and inoculating bacterial colonies in slant culture medium and storing in biological safety cabinet.