The invention discloses a physical type oilfield water treatment standard reaching device and a treatment technology. A sewage treatment system comprises a precipitation tank, a three-phase separator, a precipitation tank, a primary lifting pump, a multifunctional treatment water tank, a secondary lifting pump, a coarse treatment device, a fine treatment device, a refined treatment device, an air compressor, an air storage tank, and auxiliary pipe valves; a mud slurry treatment system comprises a blowdown tank, a mud lifting pump, an oil and mud water separation device, a mud slurry concentration or curing device, and auxiliary pipe valves. The treatment technology has the advantages that the suitability to incoming water is strong, the treatment process is short and sealed, the volatilizing of gas and the overflow of oil and water are avoided, the acid and alkaline liquid for flushing and regeneration is avoided, the management is convenient, the quality of treated water is good, and the quality of injected water can fully reach standard; in the running process, only electricity and gas are added, and the medicine is not added, so that the running cost is low; by matching with the perfect sewage tank, the oil and mud water separation device and the mud slurry concentration or curing system, the problem of vicious circle of oil and mud pollutants in the water treatment device is solved.