NOVELTY - Processing industrial high-calcium and high-salt wastewater comprises arranging industrial wastewater processing composite operation system comprising pre-processing system, hydrolysis acidizing anaerobic biochemical treatment system, halophile oxygeneration biological treatment system, contact oxidation film biological treatment system, and aeration biological treatment system. The process condition is controlled in mixing flocculation settlement unit by adding flocculating agent, reacting and settling; and in pre-oxidization unit by aerating compressed air, and putting iron shaving.    USE - Method for processing industrial high-calcium and high-salt wastewater, particularly for petrochemical industry device water processing system of mining oil, smelting oil, catalytic cracking oil, chlor-alkali plant and epoxy chloropropane.    ADVANTAGE - The method has low processing cost and continuous and steady processing effect. When the salinity of the wastewater to be processed is 3.0% (according to calcium chloride), the density of COD is 1250 mg/L, and the water yield quality under ammonia-nitrogen (NH3-N) can reach the following technical index: COD is less than 60 mg/L; and NH3-N is less than 5 mg/L.    DETAILED DESCRIPTION - Processing industrial high-calcium and high-salt wastewater comprises arranging industrial wastewater processing composite operation system comprising pre-processing system, hydrolysis acidizing anaerobic biochemical treatment system, halophile oxygeneration biological treatment system, contact oxidation film biological treatment system, and aeration biological treatment system. The pre-processing system comprises mixing flocculation settlement unit and a pre-oxidization unit. The process condition is controlled in the mixing flocculation settlement unit by adding flocculating agent, reacting at 5-30 minutes and settling at 30-120 minutes; and in pre-oxidization unit by aerating the compressed air, controlling the dissolved oxygen to 0.8-2.0 mg/L, adjusting pH and controlling the pH value to 2.5-7.5, and putting iron shaving so that the porosity is 55-95%. The hydrolysis acidizing tank of hydrolysis acidizing anaerobic biochemical treatment system is divided into first and second sections. The first section is 3/5 of the tank volume and employs the strength controlling submerged mixer. The second section is 2/5 of the tank volume and filled with semi-soft filler, which is 50% of the tank volume. The bottom surface of the second section of the hydrolysis acidizing tank is 45 degrees C slope. A baffle plate is arranged between the first and second sections of the hydrolysis acidizing tank for returning the second section sewage to the first section. The hydraulic staying time is 5-15 hours. The dissolved oxygen (DO) is less than or equal to 1.0 mg/L; and the sewage density mixed liquor suspended solid (MLSS) is 1500-3000 mg/L. The method in halophile oxygeneration biological treatment system comprises setting a siliceous micropore coil pipe in the halophile oxygeneration tank; employing the large sewage returning quantity operation way; and setting halophile acclimation technical condition by inoculating bacterium that comes from petrochemical plant sewage processing sewage, where the processed water chemical oxygen demand (COD) is 260-1100 mg/L and total dissolved solids (TDS) is 6000-8000 mg/L. The technical parameter of halophile oxygeneration tank comprises pH of 6.5-8.5 pH; 5-12 hours of hydraulic staying time, 100-300% of sewage returning rate, more than 4 mg/L of DO, 10 g/L of MLSS, less than 800 mg/L of water inlet COD, and 0.8-1.5 kg COD/m3.day of COD volume load. The method in contact oxidation film biological treatment system comprises adding 5-10 mg/L of Bacillus nitrificans in impacting manner, where the technical parameters are as follows: 6.5-8.5 of pH, 2-8 hours of hydraulic staying time, 100-300% of sewage returning rate, more than 4-6 mg/L of DO, 4-6 g/L of sewage density MLSS+biomass weight, and semi-soft filler. The method in aeration biological treatment system comprises processing the qualified water via contact oxidation film biological treatment system; adding co-substrate in biological aerated filter (BAF) tower, where the co-substrate comprises alcohol or carboxylic acid substance, and the addition quantity is 5-20 mg/L; starting BAF filter tower and inoculating; taking the returned sewage of the oxygeneration tank as inoculated sewage, where the inoculating quantity is 1/4 of the tank volume; adding organic nutrients to the water; increasing the water inlet quantity; and when the removing rate of COD via BAF is steady, finishing stating BAF filter tower. The technical parameter of BAF filter tower comprises 1.5-5.5 hours of hydraulic staying time, 0.5-1.5 m3/m2.hour of hydraulic load, 0.5-1.0 kg COD.m3/day of organic load, 8-15 mg/L of co-substrate addition quantity, 1.0-3.0 to 1 of gas-water rate (oxygen), greater than or equal to 3.0 mg/L of dissolved oxygen, and 3-6 mm of diameter of light ceramsite as filler.