A periodic metasurface structure composed of quartz and silicon nano beams was proposed. The periodic gradient change in the phase distribution can be used for obtaining a specific angle deflection of the vertically incident light, and the deflection angle can be adjusted by changing the width and period of the silicon nano beam. Simulation results show that the deflection efficiency exceeds 60%, and the far-field divergence angle reaches about 3° in the deflection angle range of ±45°. The proposed structure is simple and can be combined with a tunable laser and a wavelength division multiplexer to compose a beam steering device and thus the beam angle can be tuned by changing the wavelength, which can be applied to solid-state beam scanning with large angle range.