In order to overcome the problem of advance high-strength steel (AHSS) bending tube component with serious springback defect, a new method to control the springback of such parts by hydro-forging process was proposed. Its mechanical principle was to apply a certain amount of compression along the circumferential direction for the bending tube through the clamping motion of upper die (perpendicular to the bending axis) to lead the plastic deformation and subsequent yield of circumferential material, so that the inner and outer axial bending stresses were all transformed into the axial compressive stress, that leaded to eliminate the axial stress difference between the compressive stress on inner layers and the tensile stress on outer layers which caused by bending, so reaching the purpose of basically eliminating springback. This is contrary to the mechanical principle of the stretch bending method. Finite element analysis and experimental verification were adopted to reveal the mechanical mechanism of controlling tube component bending springback by hydro-forging. The research results show that, the bending springback amount decreases with the increasing of the compression amount of tube, and there is a certain critical compression amount. For AHSS with the tensile strengths of 600 and 800 MPa respectively, the springback amount could be reduced by more than 95% by this method.