SmallRNAhasrecentlydrawnmoreandmoreattention.Inthispaper,weconcentrateontheinfluenceofnoisesongenenetworkregulatedbysmallRNAusingchemicalLangevinequation.Itshowsthatthenoisecancauseoscillationwhentheoscillatedoesnotoccurinthecorrespondingdeterministicsystem.Thecoherenceofthenoiseinducedoscillationreachesamaximumforanoptimalintensityofnoise,andthecoherenceresonanceappearsaccordingly.Thefindingsimplyprobablyomnipresentimportanceofnoiseinthefunctioningprocessoflivingorganism.