Noise　is　often　considered　as　the　biggest　enemy　of　maintaining　quantum　coherence.　However,　in　this　paper,　we　show　a　scheme　to　protect　quantum　coherence　by　introducing　extra　noise.　To　be　specific,　we　study　an　atom　coupled　to　a　single　mode　cavity　(Jaynes–Cummings　model)　with　two　noises.　One　is　from　the　cavity　leakage,　the　other　is　from　the　stochastic　atom-cavity　coupling.　Based　on　the　non-Markovian　dynamical　equation,　we　show　the　quantum　coherence　can　be　protected　by　introducing　the　noise　in　the　atom-cavity　coupling.　We　study　four　different　types　of　noises　and　show　their　performance　on　the　coherence　protection.　We　also　analytically　reveal　the　mechanism　of　the　quantum　coherence　protection,　namely　the　high　frequency　noise　can　freeze　the　dynamics　thus　protect　coherence.　Last　but　not　least,　a　mixture　of　different　types　of　noises　(hybrid　noise)　is　studied.　We　show　the　mixture　can　lower　the　performance　of　the　coherence　protection　scheme　and　provide　an　explanation.　We　hope　the　results　presented　here　may　attract　more　attention　on　protecting　quantum　coherence　by　utilizing　noise.