Abstract: Remote sensing satellite is suitable for topographical surveying and mapping of overseas oil and gas pipeline projects because of its advantage of being unrestricted by geographical location, pandemic and social environment. Due to the problem of elevation accuracy, it is still in the experimental stage to draw 1:2 000 scale topographic maps for designing pipeline construction drawings by satellite mapping technology. Since the manual surveying and mapping for the construction drawing design of the oil and gas pipelines in Iraq and Niger is restricted by the pandemic and the social and political stability, the satellite remote sensing technology was used for surveying and mapping. Meanwhile, analysis was conducted to improve the elevation accuracy of satellite mapping by pass points.Specifically, the spatial model of satellite images was corrected and recovered by the image control points at first, and then the elevation results within the mapping area was subjected to secondary correction by measuring pass points. The results show that the elevation accuracy of satellite mapping can be effectively improved by the secondary correction based on pass points and meet the requirements of construction drawing design for 1: 2 000 topographic map. Conclusively, the satellite mapping could provide a suitable alternative for overseas oil and gas pipeline survey, which is helpful to reduce various risks and assist to the high consequence area identification and pipeline digitization.