To　promote　the　development　of　low-carbon　industries　of　Pingtan,　it　is　necessary　to　establish　a　scientific,　comprehensive　and　reasonable　index　system　to　evaluate　the　energy-saving　of　low-carbon　industrial　development.　This　paper　firstly　introduced　the　development　background　of　Pingtan.　By　analyzing　the　domestic　and　foreign　industrial　low　carbon　development　evaluation　theory,　the　energy-saving　evaluation　system　of　Pingtan　industrial　low　carbon　development　is　constructed　by　selecting　three　subsystems　of　energy　consumption　index,　emission　reduction　index　and　technical　index,　including　12　specific　indexes.　Finally,　the　paper　proposed　a　calculation　model　using　Principal　Component　Analysis　(PCA).　The　evaluation　system　has　a　crucial　practical　significance　to　optimize　the　industrial　structure　layout　of　Pingtan,　promote　the　transformation　and　upgrading　of　traditional　industries,　accelerate　the　pace　of　low-carbon　industries　development,　and　improve　resource　utilization　efficiency.　©　2021　The　Author(s)