Abstract: Following the guiding ideology of "starting from change, process driving, organization adaptation, data enablement and IT enablement", China Oil & Gas Pipeline Network Corporation fully identified the pain points and difficulties in the current production, operation and maintenance field based on the operation and maintenance technology, as well as the management experience, of long-distance oil and gas pipelines, with reference to the successful practice of Huawei in digital transformation. In this study, the business essence and value creation were focused on, and the development of production operation and maintenance processes for oil & gas storage and transportation was explored to realize the core objective and value of improving intrinsic safety level and management efficiency. Besides, 124 relative core business processes were identified preliminarily to support the construction of business information systems. Moreover, prospects were made for the implementation and development of business processes, IT models and digital transformation based on business and technical simulation. Additionally, the future development ideas were put forward in terms of business management standardization, business application scenarios, job responsibility matching and trial operation of processes.