Noise　will　be　inevitably　mixed　with　music　signals　in　the　recording　process.　To　improve　the　quality　of　music　signals,　it　is　necessary　to　reduce　noise　as　much　as　possible.　This　article　briefly　introduces　noise,　the　masking　effect,　and　the　spectral　subtraction　method　for　reducing　noise　in　reverberant　music.　The　spectral　subtraction　method　was　improved　by　the　human　ear　masking　effect　to　enhance　its　noise　reduction　performance.　Simulation　experiments　were　carried　out　on　the　traditional　and　improved　spectral　subtraction　methods.　The　results　showed　that　the　improved　spectral　subtraction　method　could　reduce　the　noise　in　reverberant　music　more　effectively;　under　an　objective　evaluation　criterion,　the　signal-to-noise　ratio,　the　de-reverberated　music　signal　processed　by　the　improved　spectral　subtraction　method　had　a　higher　signal-to-noise　ratio;　under　a　subjective　evaluation　criterion,　mean　opinion　score　(MOS),　the　de-reverberated　music　signal　processed　by　the　improved　spectral　subtraction　method　also　had　a　better　evaluation.　©　2022　Shenghuan　Zhang　and　Ye　Cheng,　published　by　De　Gruyter.