The enhanced transmission phenomenon of 980 nm wavelength light through sub-wavelength periodic hole arrays on Au film was analyzed. A triangular lattice hole arrays model with centric defect mode hole was established. By using three-dimensional finite difference time domain(3D-FDTD)method, the property of transmission has been numerically analyzed. The results show that the transmission with given wavelength can be enhanced by optimizing the periodic parameters of hole arrays. When the period of hole arrays, diameter of centric hole and diameter of air holes are 450 nm, 400 nm, 150 nm respectively, the transmission field can be confined to a spot with sub-wavelength width (880 nm) in 3 μm far-field from hole array surface. The fabrication technology of hole array on Au film by using focused ion beam (FIB) was studied, and the expected hole array was developed. This hole arrays can be integrated onto a 980 nm wavelength VCSEL lasers to optimize the far-field characteristic of the device.