In this study, a flexible mechanical finger was designed, and the mold of flexible mechanical finger was printed with a 3D printer, and a flexible mechanical finger was made from silica gel. The model parameters C₁₀ and C₂₀ of the strain energy density function of the silicone material were obtained by tensile test, and the three?dimensional model of the flexible mechanical finger was established by Solidworks, and the stress and strain of the flexible mechanical finger were analyzed by ABAQUS software at the pressure of -0.02 MPa to 0.05 MPa.The results showed that the maximum stress and strain values were -8.866 MPa and -0.564 at -0.02 MPa, and 2.981 MPa and 0.711 at 0.05 MPa, respectively. The maximum transverse displacement was 7.60 mm.