Abstract: By analyzing problems of welding quality often occurred in pipeline welding construction at oil transport station, points out the significance of on-site technical management in pipeline welding construction. More attention shall be paid to technical management in welding construction, especially in installation of oil transport station, in which many factors such as joint size deviation of pipes, fittings and valves adopt- ed, different mother material and wall thickness will affect welding quality. The key points of technical management in welding construction: strictly abide by welding construction specification, welding material management, welder management, bevel shape, welding procedure environment, joint quality inspection. Meanwhile gives a brief introduction about precautions.