NOVELTY - Processing high salinity waste water after petroleum exploitation, involves inoculating sludge and waste water to high salinity basic culture medium, culturing, selecting well-grown colonies and sub-culturing with high salinity selective medium to obtain salinity degrading bacteria, processing high salinity waste water with obtained bacteria for 23-72 hours to screen beneficial strains based on chemical oxygen demand in waste water, adding screened strain immobilized granules of polyvinyl acetate and sodium alginate to high salinity waste water and culturing at 34-35 degrees C.    USE - The method is useful for processing high salinity waste water after petroleum exploitation (claimed).    ADVANTAGE - The high salinity waste water can be processed by a simple and cost-effective method.    DETAILED DESCRIPTION - Method for processing high salinity waste water after petroleum exploitation using embedded strains, involves (a) measuring the different selected sludge in aseptic operation, diluting and mixing the sludge with waste water according to a ratio of 1 g of sludge to 90 ml of waste water, diluting the mixture to the concentration of 101, taking 1 ml of bacterial liquid from each test tube with different diluting times and inoculating the liquid to high salinity basic culture medium, culturing the liquid in a constant-temperature culture oven at 34-35 degrees C for 2 days, selecting the well-grown colony from the plate and inoculating the colony to the petriplate that contains high salinity selective culture medium and then culturing in a constant-temperature culture oven, scoring and separating the flat plate repeatedly until the target high salinity degrading bacteria is obtained, (b) inoculating the obtained target high salinity degrading bacteria in the basic culture medium and carrying out accumulation culture at 34-35 degrees C with a rotating speed of 105-110 rotations/minute for 23-24 hours, inoculating 1 ml of accumulated culture liquid medium into the high salinity waste water after petroleum exploitation, and performing degradation for 23-24 hours, checking change of the chemical oxygen demand (COD) in the waste water before and after inoculating the bacteria, and screening the strain with good processing effect, (c) accumulating strains selected by the screening process (b) by high salinity based medium, inoculating 10.1-10.3 ml of the culture to waste water whose ratio is 1:3 and acclimatizing by culturing at 34-35 degrees C and 105-110 rotations/minute for 48 hours, inoculating 1 ml of the culture to waste water whose ratio is 2:3 for the second-stage acclimatizing at the same condition with the first-stage acclimatizing, after 46-48 hours, inoculating 10 ml of culture to all waste water, acclimatizing for 2 days at the same condition with the first-stage acclimatizing, separating strains, stored at -4 degrees C, (d) inoculating beneficial strains formed by acclimatizing to basic medium, culturing at 34-35 degrees C and 105-110 rotations/minute during shaking for 24 hours, which carries out accumulation culture, inoculating 1 ml of the culture into high salinity waste water after petroleum exploitation, degrading for 70-72 hours, measuring change of COD of the waste water before and after using the strains, screening strains with good effects, (e) inoculating strains with good treating effects to basic medium, culturing at 34-35 degrees C and 105-110 rotations/minute during shaking for 23-24 hours, centrifugating at 3900-4000 rotations/minute for 10 minutes, removing supernatant fluid, washing bacteria by germ-free water, shaking for 5-6 minutes, centrifugating at 3900-4000 rotations/minute, removing supernatant fluid, diluting bacteria by high salinity germ-free water, shaking uniformly, mixing strains to form strain mixture, maintaining OD of the mixture at 0.085-0.90, inoculating 1 ml of the mixture to 100 ml of the waste water, degrading at 34-35 degrees C and 105-110 rotations/minute on shaking table for 23-24 hours, measuring change of COD of the waste water before and after using the strains, which forms effective strain mixture, and (f) crosslinking 10-12% of polyvinyl acetate (PVA) and 0.5-2.5% of sodium alginate for 22 hours, adjusting pH value of the crosslinker to 4.5-7.5, soaking obtained granule by high salinity germ-free water for 24 hours, immobilizing 9.8-10% of effective strains on the obtained granule, adding the prepared granules into high salinity waste water after petroleum exploitation by solid liquid ratio of 80:100 ml, and culturing at 34-35 degrees C and 105-110 rotations/minute during shaking for 47-48 hours.