In　this　paper,　the　optical　power　of　a　vertical　cavity　surface　emitting　laser　(VCSELs)　orthogonal　line　polarization　light　was　measured　and　analyzed　at　different　liquid　crystal　(LC)　layer　design　using　a　nematic　LC　layer　as　a　laser　polarization　control　unit　integrated　into　the　surface　of　VCSELs.　The　experimental　results　show　that,　after　the　integration　of　the　LC,　as　the　design　of　the　LC　layer　increases,　the　first　jump　point　of　laser　polarisation　is　gradually　delayed,　and　the　current　value　∆I　between　the　first　and　second　jump　points　gradually　increases,　with　the　design　of　the　liquid　crystal　layer　being　10µm,　∆I　is　2.5mA,　which　is　1.5　times　higher　than　without　the　LC.　It　can　be　seen　that　by　varying　the　design　of　the　surface　LC　layer,　the　orthogonal　line　polarization　stabilization　range　of　the　VCSELs　can　be　effectively　extended,　which　provides　a　theoretical　and　experimental　basis　for　the　design　and　fabrication　of　high　quality　single　polarization　stabilized　LC-VCSEL.　©　2023　SPIE.