Aiming at the development environment of the sour oil field located in the northwest of China,it is analyzed in the way of the corrosion factors including hydrogen sulfide,carbon dioxide,water,choric ion etc.It summarized the primary controlling factor and development trend of oil field corrosion.Measures and advices of corrosion control and safe operation were provided on the aspect of materials,corrosion inhibitor,corrosion monitor and so on.