Abstract: Meta-surface is optical flat film based on sub-wavelength structure, which can regulate phase, amplitude and polarization of incident beam in sub-wavelength range. In order to replace the traditional surface optical elements, one new type of mata-surface was designed by using the transmission phase regulation theory and the generalized reflection law. Program simulation was carried out and the data of beam focused and regulated by the sub-wavelength structure were obtained. The results show that, when the length of long and short axis of elliptical element of mata-surface is longer, equivalent refractive index of material increases at the same time and the applicable wavelength range increases to 0.7μm~1.2μm. By optimizing the mata-surface structure parameters, phase regulation within wide wave band can be realized, and the optimization of the focused light field can be obtained. To a certain extent, it can replace traditional optical elements to realize optical focusing. The results have some reference value in super-resolution imaging and photolithography. It can simplify the optical path in some special demands that sub-wavelength structure can regulate the beams. Compared with the traditional optical elements, mata-surface has the advantages of thickness.