Considering the high-risk characteristics of the high-sour gas field development, China Petrochemical Corporation follows the management concepts focusing on safety all the time in the project construction and makes safety the first precondition, primary basis and essential guarantee for the gas field development. By means of strengthening the key links such as standard establishment and implementation, technical innovation, new equipments and new materials R&D and application, system supervision, etc., it overcomes the superior difficulties with high technology and handles the high risks with system control. As a result, it has built the first ultra-deep and high-sour large gas field of China with the scale of over 10 billion cubic meters and the second largest high sour gas purifying plant in the world in 3 years. Meanwhile, it has summarized a complete management mode for developing domestic high-sour gas fields and formed the supporting technologies and specifications for developing high sulfur content gas reservoirs safely and effectively, which has important popularizing and guiding meaning on developing similar gas fields.