After solving the material model, geometric model, mesh generation and other key technical problems in the FE model of GH5188 sheet with densely holes, the 3D FE model of asymmetric three - roll bending of the sheet with densely holes was established. The simulation results of the FE model agree well with the experimental results, and the model is reliable. And then, a representation method for the deformation of the holes on the sheet with densely holes is proposed. The deformation rule of the holes on the sheet with densely holes is analyzed. The results show that the expansion of the outside face is slightly greater than the compression of the inside face after the hole bend, and the deformation of the holes fluctuates slightly and increases slightly during the rolling process.The deformation difference of the holes along the same axis direction of the forming part is teeny.The deformation of the holes along the same circumference direction of the forming part fluctuates, but the difference is very small.