In　order　to　investigate　the　effect　of　temperature　on　the　cellulose-degrading　bacteria　and　denitrifying　bacteria,　the　denitrification　and　phosphorus　removal　of　solid　carbon　source　of　cellulose　corncob+sulfur/sponge　iron　nitrogen　and　phosphorus　removal　composite　system,　abbreviated　as　SCSC-S/Fe,　was　analyzed　under　different　temperature　conditions,　and　the　surface　structure　and　microbial　properties　of　corncob　before　and　after　reaction　were　analyzed　by　scanning　electron　microscope　(SEM)　and　MiSeq　high-throughput　sequencing　technologies.　The　results　indicated　that　when　temperature　increased　from　15,　20,　25　to　30,　the　average　TN　removal　rate　of　the　system　increased　from　78.88%　to　92.70%,　the　average　removal　rate　of　TP　increased　from　82.58%　to　89.15%;　microbial　properties　showed　that　the　surface　reaction　after　corncob　was　dominated　by　spherical　and　rod-shaped　microorganisms;　the　proportion　of　cellulose-degrading　bacteria　was　11.01%　higher　at　30　than　20,　and　the　proportion　of　denitrifying　bacteria　decreased　by　21.26%.　It　can　be　seen　that　the　cellulose　-degrading　bacteria　were　more　sensitive　to　the　temperature　than　the　denitrification　bacteria,　and　more　obviously　affected　by　the　temperature.　©　2017,　Science　Press.　All　right　reserved.