A　full-Stokes　polarization　imaging　method　was　introduced　by　using　a　liquid　crystal　variable　retarder　(LCVR)　and　the　metallic　nanograting　arrays.　The　linear　polarization　was　detected　based　on　the　dichroic　transmission　of　the　metallic　nanograting.　The　circular　polarization　was　retrieved　from　two　successive　measurements　with　different　retardance　or　orientation　of　LCVR.　The　determinant　of　data　retrieve　matrix　was　analyzed　for　the　LCVR　optimization.　A　full-Stokes　imaging　setup　was　built,　calibrated,　and　proof-of-principle　verified　through　imaging　of　radially　polarized　beams.