As a new kind of structured beam in recent years,the vortex beam has great application prospects in optical particle manipulation,bioscience,and optical information transmission because of its orbital angular momentum.In the previous reports on the generation of vortex be ams,there are some problems,such as large device size,circular polarization of excitation light and single wavelength.This paper presents a meta-surface structure for generating a vortex beam.The comb ination of the metal silver unit and the silica substrate enables the output of the vortex beam to ac hieve a highly integrated experimental system.This structure does not dep end on the polarization direction of the excitation light.Compared with other methods that must rely on circular polarization excitation to generate a vortex beam,this structure realizes linear polarizatio n excitation in the simulation and has no special requirements on the polarization direction,which is benefici al to improve system stability and integration.It is also proved by simulation that by changing the lateral dimension of the meta-surface on the meta-surface,the output of the multi-wavelength vortex b eam can be realized separately,which satisfies the researcher′s demand for wavelength diversity.