The　advantages　of　biaxial　polypropylene　(BOPP)　film　make　it　very　valuable　to　use,　but　the　bottleneck　of　its　production　line　hinders　the　development　of　its　production　capacity.　In　this　paper,　based　on　the　Plant　Simulation　computer　simulation　platform,　taking　BOPP　production　line　as　a　case　study,　the　identification　and　solution　of　production　bottleneck　of　serial　production　line　are　studied.　The　results　show　that　the　production　bottleneck　exists　in　the　film　production　line,　and　the　three　optimization　schemes　can　alleviate　the　production　bottleneck　to　a　certain　extent.　The　feasibility　of　some　optimization　and　bottleneck　identification　methods　and　computer　simulation　methods　are　verified.　©　2023　SPIE.