Environmental　problems　are　common　challenges　in　today＇s　world.　Under　the　requirements　of　emission　peak　and　carbon　neutrality,　the　research　on　energy　saving　and　carbon　reduction　of　manufacturing　system　is　the　general　trend.　In　the　design　stage　of　production　system,　the　demand　of　capacity　and　low　carbon　emission　should　be　taken　into　account.　In　this　paper,　the　leafy　vegetable　production　system　in　protected　agriculture　is　taken　as　the　research　object,　and　the　quantitative　mathematical　model　of　carbon　emission　of　production　system　is　established　based　on　the　whole　life　cycle　analysis,　and　the　digital　simulation　model　of　production　system　is　established　by　Tecnomatix　Plant　Simulation　15.2.　Combining　the　mathematical　model　with　the　simulation　model,　by　designing　multi-factor　and　multi-level　simulation　experiments,　this　paper　explores　the　relationship　between　the　design　parameters　of　production　system,production　capacity　and　carbon　emission,　so　as　to　guide　the　optimal　decision　of　low-carbon　design　scheme.　In　the　future,　the　carbon　footprint-production　system　model　proposed　in　this　paper　can　be　used　to　predict　and　trace　the　carbon　emissions.　This　paper　has　certain　theoretical　and　practical　significance　for　the　low-carbon　research　of　production　system.　©　2022　IEEE.