The　Field　transformation　(FT)　is　a　novel　theory　for　controlling　the　polarization　and　impedance　of　electromagnetic　waves,　which　is　independent　on　the　angle　of　incidence.　Thus,　the　FT　method　is　superior　for　wide-angle　devices　design.　In　this　paper,　we　propose　a　wide-angle　method　for　generating　vortex　beam　based　on　the　FT　theory.　According　to　this　method,　an　artificial　media　for　vortex　beam　generation　is　designed　and　simulated,　which　demonstrates　the　proposed　method.　The　designed　artificial　media　is　a　multi-layered　structure,　which　can　generate　vortex　beam　of　order　2　with　an　incident　angle　stability　up　to　60°.　©　2020　Chinese　Physical　Society.