Abstract: The vibratory conditioning process was investigated in the electroslag welding of blast furnace steel.The metallographs show that a grain refined joint is produced.The residual stress and side bend property were carried out in different vibratory conditions (0, 3 and 6 m/s²).Welding deformations is a very serous problem in welding of H-section steel.The welding deformation of the H-sesults of the test have fully proved that vibratory conditioning technology can effectively reduce residual stress, and improve the comprehensive properties of welded joints, and reduce the residual welding deformation, which guarantee the production quality.