Standardization in design is one of the key tasks promoted by oil companies in recent years, and a set of complete corporate engineering standards is the cornerstone of standardization in design work. In order to gather experience and learnings from the development of pipeline engineering standard systems of international oil companies, this research takes the engineering standard system of Saudi Aramco, the worlds largest oil company, as an example. This paper analyzes the commonly used standards of pipeline design, construction, pigging, pressure testing and pipeline safety in Saudi Aramco, and finds that its standard system documents cover a wide range, and the relevant standards give clear guidelines and are nicely set up for practical application. Its standards for pipeline stress analysis/flexibility analysis, anchor design, material selection for process equipment, pigging and pressure testing, and pipeline safety are valuable references for establishing and enhancing the relevant standardization in design documents in  oil companies in China.