In　this　study,　the　multiple　imaging　morphological　features　of　plasma　have　been　observed　by　using　the　multiple-imaging　technique　during　the　fiber　laser-tungsten　insert　gas　(TIG)　arc　hybrid　welding.　Four　images　of　the　plasma　can　be　simultaneously　obtained　in　a　picture.　From　the　first　image　to　the　fourth　image,　there　is　a　gradual　decrease　in　area　and　a　gradual　increase　in　light　intensity.　The　first　three　images　have　approximately　consistent　time-dependent　area　changes.　This　consistency　and　the　stability　of　the　first　three　images　increase　with　the　increase　in　the　arc　current　or　with　the　decrease　in　the　heat　source　spacing　or　laser　power.　The　third　image　has　a　higher　area　fluctuation　frequency　than　the　first　image.　The　metal　vapor　and　the　shielding　gas　are　not　fully　mixed,　and　the　fluctuation　of　the　metal　plasma　is　the　main　cause　of　the　hybrid　welding　plasma　fluctuation.