The　rise　of　the　short-form　video　industry　marks　a　revolutionary　change　in　the　digital　media　landscape.　This　has　opened　up　new　opportunities　for　content　distribution　and　creation　but　has　also　brought　about　several　challenges,　one　of　which　is　the　difficulty　of　effectively　protecting　video　copyrights.　In　the　industrial　sector,　for　example,　the　industrial　digital　design,　manufacturing,　and　production　process　often　generate　a　large　amount　of　video　data.　If　these　videos　are　stolen,　copied,　or　tampered　with　by　unauthorized　third　parties,　infringement　issues　can　arise.　To　effectively　monitor　and　protect　the　video　copyrights　of　users　or　enterprises,　this　paper　proposes　a　lightweight　video　clip　fast　matching　(KMP-FVFM)　algorithm.　The　algorithm　utilizes　the　idea　of　Knuth-Morris-Pratt　(KMP)　algorithm,　which　takes　into　account　the　inter-frame　fragment　relationship　of　the　query　video　to　improve　the　video　matching　speed.　At　the　same　time,　the　duplicate　segment　locations　are　pinpointed　in　the　original　video.　This　paper　also　implements　a　plain　method　for　video　fragment　matching,　and　the　experimental　results　show　that　KMP-FVFM　can　effectively　improve　the　efficiency　of　video　fragment　matching.　©　2023　IEEE.