Abstract: In order to ensure smooth implementation of follow-up projects in Iran, piping design practices suitable for high-sulfur oil-gas fields are analyzed here in this paper. Characteristics of piping design for oilfield projects in Iran area are studied, respectively from special regulations of the Iranian Petroleum Standards (IPS), certain requirements of project implementation and special requirements for piping design for high-sulfur oil-gas fields, such as drawing scales, contents of drawings, local installation requirements, pipe rack height, wellhead installation requirements and airtight transportation. And comparison with China's related standards is carried out. Combined with the projects completed in Iran, this paper analyzed the main points of IPS, avoiding project implementation difficulties that may be caused by different understandings on IPS. Finally, suggestions on the projects in Iran and improving piping design in high-sulfur oil-gas fields are proposed.