Taking the helical blade rolling-shear of thin metal strip as the research object,the helical blade rolling-shear model was established and analyzed based on ANSYS/LS-DYNA finite element software. The curves of rolling-shear force were obtained and the laws of rolling-shear force were explained,the maximum rolling-shear force was 4221 N,which appears at 0. 396 s. The effects of lateral clearance of shear blade,overlaps of shear blade,shear speed and strip thickness on shear force were investigated,the rolli...